Did you even think before writing that? What am I saying, of course you didn't.
the ROC doesn’t consider th Taiwan to be an independent state
Because they lose any possible claim to their continuity as the rightful government of China by doing so. Also, the CCP would be quite pissy about that.
I speak 3 confidently, on the path to 5. If the intent is to simply glean information from a native speaker, I'm currently at 7.
It is difficult to learn a second language
It isn't. Americans and some anglophones think that's the case because they're lazy and look for excuses.
some don’t and there’s an argument that kids shouldn’t be forced to as learning two languages at once can delay their primary language.
That's complete bullshit. You do know that kids in most of the world grow up learning between 2 and 3 languages in school and that doesn't impair their native language at all, right?
Pretending Japan isn't still incredibly xenophobic is quite the hill to die on.