He's watching countries being "Americanized" all over the world. And although Russia has been helping America become a Marxist type Country for decades he doesn't want a bunch of Karmala Harris types running shit all over the world. And the fact that Biden brought in trannys into government positions, my guess is it was time for Putin to make his move. China to follow suit in the near future i'd imagine. America "jumped the shark" and lets face it, something has to be done...
The Baltic countries, Russias neighbours and former soviet states that joined the EU and became "Americanized" (Estonia, Lithuania and Latvia) are thriving vs what they are were. Of course Putin doesn't want that happening to Ukraine and for Russians to see this happen time after time. Shows him up in a big way.
A country becoming "Americanized" is actually a dream for a lot of people. People who see it as a bad thing only do so because by comparison to most of the world they are sitting up in an ivory tower.
Most would happily put up with Kamala, Biden and some trannies rather than live with food insecurities, shitty infrastructure, pathetic healthcare, unbelievable corruption at every level etc etc and with no means of them or their children ever escaping it.
Yes, many of us who post on here probably don't really appreciate how good we've got it.