1. Why does China, a socialist country, have mega corporations like Tencent and Bytedance? Are they collectively owned by syndicates or unions? If this is a transitionary phase to socialism, can we trust China to actually enforce Socialism after this stage ends?
2. Child Labor in factories: Myth or Fact? I have a Chinese friend who said he personally never worked as a child in China, but obviously if this was true not every single kid would have worked in a factory.
3. Surveillance and Social Credit: are these myths, or are they true? Why would China go so far to implement these systems, surely it'd be far too costly and burdensome for whatever they'd gain from that.
4. Uighur Muslim genocide: Is this true?

Thank you to anyone who answers, and if you do please cite sources so I can look further into China. I really appreciate it.

edit: I was going to ask about Tiananmen Square, but as it turns out that literally just didn't happen. https://www.telegraph.co.uk/news/worldnews/wikileaks/8555142/Wikileaks-no-bloodshed-inside-Tiananmen-Square-cables-claim.html

https://leohezhao.medium.com/notes-for-30th-anniversary-of-tiananmen-incident-f098ef6efbc2

https://www.cbsnews.com/news/there-was-no-tiananmen-square-massacre/