This criticism is somewhat misplaced. Youtube gives a voice to anyone who wants one, many of those people are kooks and rabble rousers. Technology and the widespread use of it has caused this, Youtube is just the platform that has most successfully utilized the technologies to blend the concept of a Forum with Video. We have the same shit here, just in a different format.
I too get recommendations for things I'm not interested in viewing, but these undesirable recommendations are not made in a vacuum. Almost all of them were made after I had watched the opposite side being discussed on the channels I have subbed to. The undesirable recommendations range from Flat Earth, Political nuttery, Religious Apologetics, and other Science(denialism) Conspiracies.
The biggest difference between Youtube and Real Life is really in the access it brings. Before Youtube/Internet one could live their whole life without talking to a Flat Earther(for eg), yet they would exist. A side effect to this exposure is that some people will be convinced, for various reasons, that stupid ideas they never would have heard before are actually legitimate. This is disruptive and can be very dangerous, such as Anti-Vacc conspiracy, but so were mass produced Books, Radio, and TV. We are still relatively at the beginning of the Internet Revolution and it will take time for the full effect of that change and how to reasonably respond to that change to become normalized.
So, don't become a Luddite and start carrying your pitchforks to the HQ of Google/Youtube because Nutters exist.