I deleted my Youtube watch history several days ago, and have done so again and again and again... since then!
I don't care about recording my data, I am behind literally seven thousand shoe0nheads, but I always used an spare account to watch YT with and I really cared about it and I 'furnished' it and --- get this, since I understand ML shit a bit, I read state-of-art papers on recommender systems not to design my own recommender system, but to train Youtube's recommender system to my whim.
And then I realized I'm being extremely special-needs and I nuked it all. And I turn it off-and-on as I go.
Seriously have you ever met someone who's obsessed with YT's recommender system as a watcher? Damn!