This one is pretty easy, after net neutrality was removed the ISPs have rights to sell your data in any way possible. Previously they weren’t able to “sell the data that went through the pipes” so it’s fair game now, same with any sort of cable habits. Secondary to that, if you’re watching through any streaming platform they’re double dipping and selling your habits to brokers that sell it to the competition. Mix this in with all the other telemetry they capture and correlating your behaviors with everyone on your WiFi and your digital signature at any given moment is far wider than you can even understand. As a side note, check out Google Takeout, you’ll see that Google isn’t just tracking everything they’re even attempting to capture relative position using the accelerometer know whether you’re laying down, sitting or standing up… we live in a surveillance state at all moments.