https://www.reddit.com/r/(...)_deep_inside_crimea/Okay, so this is a reasonable thing to ask, but let's methodically lay out why this is a bad idea.
1] Russia's broken every peace deal they've signed. They have a track record, particularly in the recent past, of negotiating in bad faith, which means "making a promise they never intended to keep. They made an absolute promise to not merely "not declare war on Ukraine", but to respect their sovereignty. They broke both of these, but the latter promise is the more consequential one — they will try to do this, so any peace deal needs to be aimed at limiting their opportunities.
This was broken first by bribing their politicians, to the point where protestors had to kick out a Russian-owned president, at the cost of over 100 deaths amongst the protestors. This was then broken by an outright military invasion, in 2014, which they attempted to pretend was the work of locals who wanted to secede from the country, but was in reality regular Russian Army units who'd had their insignias stripped.
So if you sign a peace deal with Russia, you're guaranteed that they're going to try to sabotage it. They're going to do terrorist acts (like shooting down that passenger jet), they're going to do assassinations, bribes, etc, etc. Critically, this will be aimed at crippling UA's ability to economically recover.
Businesses may have insurance, but they're extremely cagey about risk. One of RU's prime strategies with their separatist movements (aimed at several countries, like Georgia, Moldova, and Armenia) is to scare away non-Russian investment from international companies. For example, there was active prospecting for Natural Gas + Oil going on by BP/Shell/Exxon in Ukraine, but it disappeared the moment the DNR/LPR stuff hit. This wasn't an accidental side effect — this was a primary intent on Russia's part.
It's a simple reality that if Crimea is partitioned, it's far, far easier for Russia to insert saboteurs, and a partitioned, policed enclave is likely to chafe pretty badly and even cause legitimate grievances against the UA government, which would be fodder for FSB contacts.
2] those people are colonists. If you've watched this sub over the course of this war, you'll have seen dozens of articles about Russia deliberately moving in new citizens from the poor parts of Russia, with cash bounties for settlement. When Putin visited Mariupol, he visited an entire new apartment complex that'd been built, stuffed with brand new residents, fresh from Russia.
This is both a new phenomenon, and an old one; during the mid 1800s (i.e. right around the time of the American Civil War), Russia finally completed its conquest of "NovoRossiya (literally: New Russia)", as Catherine the Great called it, which was the final remnant state of the Tatars — they had lived in much of the steppelands of what's currently occupied Ukraine, and had their capital in Crimea, close to their Ottoman allies, whom they'd come to depend on. After conquering them, Russia committed genocide by deportation. As with the Trail of Tears in the US, most forced relocations in the past tended to cause a large number of deaths, both in the movement itself (typically via exposure, shortage of food, violence, etc), but also by relocating people to a place where they don't immediately have a living — and it turns out a "living" isn't a figure of speech.
If you asked me this in 2014, I'd have been a lot more sympathetic to the "plight" of the Russian colonists, but at this point, fuck 'em. After all the rape, and killing, and theft, I feel like Ukraine has so goodwill on their ledger that I have absolutely no problem with them "being the asshole bouncer in a club" and deporting those assholes.
If you're pro-russian at this point, you're a nazi sympathizer from the period immediately after WW2. Fuck them, and fuck their rights — they no longer deserve them.