Memes

People changing their culture on their own volition is obviously different from people being forced to by those in power.

Is it? Genocide doesn't necessarily have to be conducted by the state. If a a roving militia or gang of mercenaries went around killing a certain kind of people en masse, then it could still be considered genocide. So if we're allowing for this idea of a bloodless genocide, then I'm not sure it's obvious how non-state actors taking nonviolent actions that cause the decline of a culture don't meet your definition.

The main argument for genocide though is, that a whole population is forced to erase their culture.

"Forced," but not through killing.

There's often a disconnect between first generation immigrants and their kids, who often end up adopting the culture they live in over their home culture through various social pressures. The fact that the US has road signs only in English forces people to learn English, doesn't it? Are those road signs genocide? If public schools fail to make accommodations in terms of language, if they teach history from a different perspective than what their parents grew up with, is that genocide?

It's absurd. What a coincidence that the first "nonviolent genocide" in history happens to come from the US's chief geopolitical rival. It's a dilution of the word for political reasons that attempts to put much less bad things on the same level as the mass extermination of a people. The primary reason that genocide is wrong is the violence accociated with it.

The population of japan could have chosen to ignore the obviously forced statement and continued to believe in their faith. And it seems like they did if shinto is still a thing

No, they did not. The emperor's divinity was one aspect of Shinto, and a significant one, but Shinto was never like a monotheistic tradition.

Eastern Ukrain was genocide, then what is happening to the Uygurs is definitely also genocide.

Except in Ukraine people did die and their heritage and language were being actively suppressed, etc. We know this because it is documented all over, even in pictures on the net. These specific things are readily confirmable. It was even a large impetus for a broader war, as hopefully you're aware. There is zero question that Ukrainian nazis were shelling Russian-speaking civilians in the Donbas and that Ukraine as a state was passing laws detrimental to Russian speakers.

In Xinjiang, no such evidence exists because nothing of the sort happened. It's based on a lie dreamed up by one Christian fundamentalist Adrian Zenz. Every source on this "genocide" traces back to him, and none of the claims are confirmable. Even to the UN! In fact you, yes, even you if you have the means to travel, can go there today and see for yourself that the Uyghur population is thriving and they will laugh if you tell them they're being genocided. I'll leave the academic discussion for exactly where to draw the line for the definition of the term genocide to others for now. But based on how you were defining it, Ukraine was committing genocide, but no, China was doing quite the opposite by encouraging ethnic diversity. Again, go see for yourself like this person did: Oh yeah, just look at all that genociding going on!