They are also arguing that since they have given up on security and assume they are fully compromised everyone else should give up as well and just buy more of these devices for their homes.

What's the counter argument? A phone is a smaller Google home running the same software and hardware. It's like bolting all the doors except the front. It'll stop a criminal attempting to enter only through the back, but doesn't it seem weird to optimize so much for that?

You must be really attached to your phone if that's how you're reading it.

Another solution would be to never bring your phone (or any other device) into your bedroom, for example, and only have sensitive conversations there.