#2: I didn't clarify exactly what I meant. A person isn't just born a Senshi by random chance, they are chosen by the planet. When the planet you are living on tells you who it wants in charge, most people are going to listen.
A lot of people will, but it's not necessarily a good thing.
Planets don't give a shit about people. Or about any particular kind of life. 'Life' is just a constantly-replicating set of chemical reactions, and a planet wouldn't have the perspective to even notice the difference (it's basically impossible to wipe out the ability to support life, because most of the things will die... and then the life adjusts to the new circumstances - the impression that life requires Earthlike, human-habitable planets is very geocentric).
The planet doesn't care whether people are starving, living in 1984, enslaved, or anything. It doesn't have the perspective to even notice, and if it did, what would the difference be?
People bonded to the planets as rulers make good rulers for the
planet, not the society. As far as the people are concerned, it's basically the same thing as getting a ruler chosen by the random chance of who gets born first. Being chosen by the planet makes it great for the planet, but it still doesn't equate to having leadership or judgement skills, so it's still arbitrary as far as the actual task of rulership goes.
When it works, monarchy is one of the most effective forms of government. When it fails, however, it tends to fail worse than just about any other form of government.
I'd call that an incorrect statement.
Effectiveness is measured by how likely it
is to work. That is best measured by safety nets - that is, how easily can we get rid of problems, and make sure that the people who end up in charge are good options?
Unfortunately, monarchy only has the single, last safety net that everything has to boil down to at the end - if they're a complete scuzzbucket, someone can kill them.
All that said... eh. I don't feel like running a debate centered around your rewrite of Sailor Moon canon, and I'd rather move the thread on to discussing things actually related to the magical girl crossover concept. Not that your rewrite is necessarily bad, just that it doesn't look like it's for this idea at all, and if we're centering discussions around it, we're focusing the discussion around a completely unrelated fic, and on a phantasm that the majority of the people here know nothing about.
To start off: One would first need to look at the restrictiveness involved in any particular magical girl series. Each one has certain elements of the setting that simply can't be overwritten.
For instance, Tenchi Muyo being nowhere near our planetary system at all, so characters from that setting being gods of local planets would seem a bit... off. (Cheap shot, I know)
More seriously:
Puella Magi Madoka Magica has a very sharp timeline limit - whatever year it is, it runs from
exactly March 16 to April 30. You can lengthen things out a couple months at most, but no matter what, it'll be a fairly short time frame. There's also an in-character problem relating to the magical girls' survival which I can't go into detail on lest I spoil. It's not a problem with crossovers, but it is something that would need to be resolved before any kind of happy ending is even on the table.
Sailor Nothing has a very heavy tone, and that's basically central to it. So you'd either break Sailor Nothing, or you'd have to match its tone, and not a lot of people would want to do that for some parts. Sailor Nothing
could fit in an 'after the events' sense, though.
Sailor Moon is actually one of the least restrictive of these, it only really marks away a period of time millenia in the past, and states that there's humanoid life and senshi out in the rest of the galaxy. (Which is one of the reasons that all the
other, more history-dependent series, getting rewritten to match the one that didn't need it struck me as... off.) It also potentially marks away a part of the far future, but it's worth noting that one only really has to stick with that if they want to - it's very easy to note that the current events are happening differently, so the future likely would as well.
Fate/Kaleido Liner Prisma Illya... might be restrictive, or might not be. It's connected to the Nasuverse, one of the densest-background-information settings in anime, but very loosely, since it's already apparently in an alternate universe from the main one. And fortunately, the Nasuverse elements Prisma Illya
does include appear to mostly be the Mage's Association (which is small and mostly has their head stuck up their ass, so they're unlikely to interfere unless you want them to) and the 'there were some really, really badass people in the past' bit.
Magical Girl Lyrical Nanoha's major restriction is the multi-world setting - Nanoha and the TSA mostly restrict the level of 'universe-busting' things that can exist in alternate realities, because they usually move out to intervene in 'em. The other restriction is the TSA itself - it's a magical community that is a great deal larger and more active than most, but is fortunately very distant and has a lot of other jobs to do.
Kore wa Zombie Desu Ka is most likely inappropriate - too much of a fantasy kitchen sink, and more or less takes pride in it (magical girls, magical girl zombies, necromancers, vampires who are also ninja...)
I've noted that Infinite Stratos is basically a magical girl show in disguise (the way Nanoha is a mecha show in disguise...), but its major restriction is
very big - it makes statements about the world itself, because there's no masquerade, the protagonists have abilities that are well known, and sometimes matched or exceeded. Which means its inclusion would break the key requirement of a magical girl broken masquerade megacrossover - namely, that the normals can't handle it, so the magical girls actually
have to fight.
Most others, I'm unfortunately unfamiliar with. (I
was familiar with Venus Versus Virus, but it's been years since I watched, so I can't really remember the background details)
There is no problem that cannot be solved through the proper application of immense levels of firepower.
- Finally promoted to Spammaster Indeterminate Rank as of June 18, by Stratagemini
<Stratagemini> My Titanium Anus Armour will repel all challengers!
Would you believe this is one of the more tame bits of dirt I've got for him?