Came here to say exactly this. Why even make a fuss about it? Bro, do you even NAT?
The argument is Google can record what you're sending your Chromecast. Well, (sorry for the crudeness) no shit... You're using Google hardware. If you're going to act like the DoD and not use Huawei switches, then don't use Huawei switches.
If you so choose, you must look at Google as malevolent as the US DoD would see an attacking nation state, and actively do things about it (like not buy their hardware). Otherwise, shut yo trap.