Privacy woes and autonomy, where do I go now?

I'm very sorry, but this is going to be rant. One that may seem to come up almost daily, but I still feel the need to vent.

Every day I feel like I'm jumping through hoops to keep a little bit of privacy and autonomy, without ever winning. DuckDuckGo is my search engine, use a paid mail provider, I try to stay away from anything Google and Meta, use only Signal, ad blocking everywhere, hosting most services locally, etc. It seems, however, to make no difference in the long run. The user-profile-building just seems to enter the home faster than I can mitigate it. Kids install some new app or new hardware ends up listening in, privacy infringement is there.

The reason I'm starting this post now is because I switched ISP and TV provider recently, but it has been on my mind for a long time. Finding one that isn't owned by one of huge 3 parent companies, is almost impossible here. After a year of deciding, I finally figured it was time to throw in the towel and just pick the least bad option. Yesterday was the day of switching and it has been such a frustrating process.

The provided router doesn't allow me to turn off its WLAN. I live in a city, so the airwaves are already crowded enough as it is. No need to keep that antenna on, but screw me, that's not possible. Opened up the device to just remove the card, but everything is soldered on the board and disconnecting the antennas didn't do shit.
It's possible to buy a modem/router myself, but it'll need to follow their requirements and will set me back $200. It would be okay if the rest of the service was great, but here comes the TV part!

The device they use for TV is apparently Android TV. I assumed it would be IPTV with this subscription, but Android TV isn't that. Booting the device makes it immediately clear they are here to harvest data. It makes me so unhappy that a service I'm paying for, is also making money on the side by collecting data. To get a quick idea of what's being done, I routed the box through wireshark to sniff DNS traffic. It's riddled with domains used for data collection and ads. That combined with the features this box wants me to agree to (location, using the mic, access local network, sign into PlayStore, make a profile including real life information) does not make me trust this device. So I've decided to not play and will be sending it back.

People around me are pretty conscious about what they do online, but compared to them I'm highly paranoid. Wherever I look, there are privacy issues. It seems impossible to escape from. How are other people dealing with this?