I could never describe any of those as a “mess” or “ridiculous voice” when the comparison is Siri, which is the worst of all.
Regarding the other things, I also have privacy concerns (including with HomePod) but you are wrong about integration and Netflix, I have a Google Nest family of speakers, some with screens and some without and I can definitely watch videos on them, I can also integrate them with Netflix, Hulu, Pandora, Spotify, control the lights and security cameras. I really don’t why you say you can’t and I would even argue that they are more integrate-able than HomePods.