YT just gave me the banner that I think you got. It blocked one video with a message with no option to click X.
It turns out, I was running an ad blocker (UBlock). I was forced to disable it, in order to watch YT.
I never logged into my YT account, though, so YT also must be blocking people who don’t have accounts.
What I've taken to doing is 1). creating another account (which sometimes works), and 2). deleting cookies. I got the "three strikes and I'm out" banner yesterday and it disappeared after I cleared cookies, cache and browsing history.
Try option #2 and see what that does for you.
Oh, and try FreeTube, see how that works for you. I’m testing it out now.