As a 360 owner and "hardcore gamer" (ugh, i hate that term) I can't say I ever felt "abandoned" in the 360's later years.
I just ignored Kinect and kept on playing games like Halo Reach/4, Gears 3/Judgement, other console exclusives like Witcher 2, Alan Wake, and Splinter Cell Conviction, and the better version of most multiplatform games.
It was the Xbone when they lost me.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023. (And over 130 million lifetime)