forbade schools generally accessible to the vast majority of public school children from teaching the language of the country they are from, would you consider that 'erasing languages'?

Where is your evidence that China is doing this? I've read that it's teaching Mandarin in schools alongside the local language. It's more like, you know, schools in the EU teaching English while also teaching German or French, etc

Ukraine...still have self determination. They can elect leaders, vote, blah blah liberal democracy, but the self determination does functionally exist.

Damn that's crazy cuz I heard Ukraine cancelled its election, banned opposition parties, and keeps a kill list of foreign and domestic journalists, is this the new model of liberal democracy?

Edit: also is self determination when your new government is chosen by Victoria Nuland, then a few years later you elect some literal joker to put an end to the civil war, then he fucks around with multiple treaties and ceasefires, then finds out, then gives a standing ovation to an Original Vintage Nazi, lol lmao