Yes, sure, you can, in some cases, plug in an external streaming device and, depending on the system, side step their incredibly abusive home screens full of ads and tracking. This might not be 100% possible on all devices. More importantly, you paid good money for a TV. You bought a TV, not a surveillance device and digital ad system to hang on your wall.
I am not one for heavy-handed government regulation, yet, this is so far out of control that it likely needs it.
The reason this is serious is because consumers have no control whatsoever. Also, most consumers have no idea what's going on. I have watch people innocently use home screens to search or click on things they don't know are ads. When you explain it to them, for the most part, they are incredulous. In a lot of cases they dismiss it with comebacks such as "you are just being paranoid", etc.
Companies like Vizio have introduced features where you get to upload your pictures to their servers to then share with others. Their TOS very clearly states they retain the right to effectively use those pictures as they see fit, including having employees look at them, and more. This is just crazy. People have no idea what is being done to them.
I highlight this because browsers on computers receive a lot of attention, while, TV's seem to be in this wild west mode where the manufacturers do anything they want with every update. Since you cannot install software to block anything, they are free to abuse and monitor your entire family as they please. This is wrong.