It's worth a try though to push back. We are not talking holding off a bunch of murderous Russian troops. It's not a good look trying to recall " ... and they came for me" either.

Just push back. Here's an example: Reolink are a Chinese company, what makes cameras - nothing intrinsically wrong with that but you should expect them to be be required to comply with any requirements the CCP might ... require. Reolink are also quite a savvy bunch and have gradually ensured that their products don't actually require an internet connection, at all. They do offer an app and the requirements of using the app are that the cams need to see the interwebs and be gatewayed by systems that are eventually subject to the CCP.

Now this isn't quite yet perfect. Rio cams have offered ONVIF for at least five years, so Zoneminder, Frigate and all the rest can be your NVR. The camera's VLAN can be firewalled off from the internet. Mine is called THINGS and it is net door to SEWER for stuff I really worry about!

Their doorbell offering is pretty decent but two way comms needs some handling. At the moment their app is the best bet for functionality but there are signs that Home Assistant with webrtc - https://github.com/AlexxIT/WebRTC should be OK.

It is not impossible to live without prop software. At least care and try.

There are plenty of times however where you can choose between open and closed source, and in those cases its best to chose open and support that sort of development.