Agreed that most electronics have China influence. But there’s a pretty big difference between influence and actual state control.
I have no insider info but from reading the news it appears that what China is doing is several levels sketchier than Amazon/Ring when it comes to infringing on civil liberties.
Protecting your self is one thing; supporting that kind of regime with your money is another.
What are your options for local-network-only cameras built in, say EU or North America? I suppose you can go with commercial surveillance cameras but I'm not sure how practical that is for the average home user...
Many would suggest to keep your cameras from accessing the internet or anything but your Blue Iris server. This sounds like a fairly common practice.