So? They can force you to pick between running old software or running new software. This is hardly new if you look at the broader "compatibility" scene. Old hardware and software are being dropped all the time. (Remember when MacOS dropped 32-bit support and wiped out a huge chunk of older games?)
If you want to stay in the old chain, you're free to do so, just like how you can still pick up a word processor made a couple decades ago and make documents on it. It only affects you if you want to use the Internet as that keeps evolving. (If you load up some '00s or '10s era browsers you'll see that many of them do not work at all for the popular Internet sites, which have all adopted things like newer TLS implementations and HTTP/3 or whatever the latest one is...