But why, if the Ukranian people are so supportive of their government?
EDIT: AgendaPoster just made the same point I did - there's a very sizeable portion of the Ukranian citizenship that don't agree with Zelenksy's actions and in fact lean towards Russia's POV. It was a civil war before it was an international one.
Yeah it's an ethnic conflict. Both sides can be citizens of the same country, yet hate each other to guts. This is why there is no magic dirt, no document that can truly make you be a REAL person of some ethnic group. No amount of liberal propaganda can make Afghans into Swedes. No passport can make an Algerian in a French.
Ethnicity and its parent group, race, stand above the pure constructs of nationality, and are largely the reason we have war. None of these concepts are perfectly defined and delimited, they are statistical entities. So you'd have self>family>friends>tribe[...]ethnic group>racial group, and just like we see here, you can be part of the same racial group of whites, you can be both Slavs as an encompassing tribe, but if the ethnic belonging, with culture, history etc. becomes clearly defined, it can always result in bloodshed. Hence both Soviets and Russians trying to erase the national and tribal identity of groups that they engulfed. Very common tactic. Tito did the same in Yugoslavia, and the US is quite famous for its ways to mongrelize it all. Failure to deal with national ID results in Austria-Hungary type of imperial collapse.
If Russia would take ownership of Ukraine one of its steps would be to make everything in education and media Russian, praise traditional Russian heroes, build statues to them, make theater Russian, essentially that's what "denazification" truly means. Even Ukraine is quite well known for doing the exact same thing to Poles, Romanians and Hungarians, in an attempt to Ukrainize the minority territories.
Always risky, resentment builds, last for ages, some might tolerate it like Romanians and Poles (begrudgingly), some like Russians might go to war, some like Hungarians might just sabotage your resistance.
Complex issues. Boring. Make more memes. I'm sure they have larger audience.