Lol that would be an absolute mess. And they'd end up having to redo everything from the ground up because Bytedance isn't gonna hand over encryption keys and would probably wipe everything important if they knew that was coming
More police in an area CAUSES more crime to happen. And what's our response to higher crime? MORE COPS!
What useful responsibilities they do have could all be replaced by other people. Most of those do not need to be armed hotheads who don't fully grasp laws they're supposed to enforce.
Tiananmen Square is like, a huge tourist attraction and plaza near their equivalent of the White House and other important government complexes I'm sure they've seen a ton of photos of it. They hold national events there.
Do you have ANY Italian ancestry? Even fairly distant like 100+ years ago? Irish grandparents?
Other than that it's gonna be tough bud.
Not EU but there's ways to do remote work in other countries... Look into some "digital nomad" communities although they often come across as gross privileged fucks who just want to exploit lower costs of living and not try to fit in at all.
Japanese Kanji are based on Chinese characters so you'll have a headstart in that department.
The rest of the language is completely unrelated though