I rarely log into Youtube. When I watch a video it's a casual thing, a link somebody sends me or something that shows up in my feed that piques my interest, so I don't bother. Youtube requires logging in before you can like or subscribe or comment, so I rarely do any of that.
Also, if there was ever a way to discourage me from doing any of that, it's for the video to ask me to do any of that. Especially when they ask in an obnoxious way. A subtle "If you like our stuff, please like our stuff" won't turn me off, but if it is in my face (such as by having a "Like & subscribe" thing shown through the whole video), I won't do it just out of spite.
I should point out, however, that I am a video curmudgeon. I do not like videos in general. If I google something (say, how to reset the maintenance reminder in a 2022 Mercedes GLE450), I will scroll past all the videos on how to do it until I get to a link in which I can read how to do it. As a rule, if I see that a link leads to Youtube (say, a review of a new car) I will not click it. I have adjusted the settings in my Brave browser so that videos do not autoplay. If I want to watch them I will click on them, and I rarely want to watch them. When I am on the internet I just want to read in peace and quiet. My preference for reading over watching is one of the reasons why I come to Tapas.
Yeah, I know. I'm an "Old man yells at clouds" type of person.