SomethingBurger

And then they will shut it down like Google did with XMPP.

What's the point of being a single country if each territory has its own laws?

Google made one /s

Tankies aren't leftists. They defend genocidal and authoritarian regimes, which are inherently right wing.

It can be useful to improve the condition of minorities, but it is not a special status like First Nations or even an autonomous government.

Is this a US thing I'm too French to understand?

In a functioning country, minority ethnic groups are regular citizens without a special status and don't have more legitimacy to be autonomous than other people. Ethnic groups don't control land; governments do. Otherwise, it's called an ethnostate and it's not a good thing.

Why would certain groups have autonomy on some things but not others? They don't get to pick and choose. Either declare independence or submit to the central government.

It has less. The EU is mostly an economic union. It can regulate trade and consumer rights, but not much else. Countries must adhere to the European Declaration of Human Rights and some other conditions to join the Union (like being a democracy or having a stable economy), but the EU cannot enforce these rules after the fact; see Hungary which became a near-dictatorship after joining, or France which is regularly sentenced for human rights violations and simply pays the fine instead of changing anything.

EU laws cannot contradict a country's constitution. If they clash, the country must - by EU rules - change its constitution, but not doing so carries almost no consequence, and the country can ignore the law; however, if a court case around said law makes it to the EU Court of Justice, it will be judged using EU laws.

Also, the EU doesn't have an army or a police force, so rebellious member states can only be economically sanctioned into compliance, which almost never happens to any serious degree, as it would cause too much political trouble within the union.

Also, they multiverse may contain an infinite number of realities, but not all possible realities.

Places like that in other countries usually don't have as much power as US States do. Other countries are better designed and don't have practically independent sub-countries inside them with their own laws.