Yes, that's also true, but on the flip side, technological advancement of society as a whole is not stifled by idiotic IP law.
I agree, some anti-monopoly regulation is in order in China, and I'm not a fan of the Alibaba/Tencent monopolies on the ecosystem. However, I think there are other ways to go about fostering and encouraging small businesses and protecting creators and their intentions than American-style IP law, which allows you to sit on an invention or work and hinder society from having access to the fruits of science, which I'm vehemently against. IP isn't even real property, IMHO.
Yes it is, if 90% of the reason for new tech is to get richer, if all protections like copyright, patents, etc are dropped then people will be much less incentivized to invest and stick their necks out for new creations. I wholeheartedly do not agree with your IMHO. That said we could absolutely improve our current patent system and copyright system (especially copyright and those parts which contribute to patent trolls)
Founders there have no choice but to sell or get copied by the platform that you're building on. It's baba or tenscent.