You can keep telling yourself that you have a "choice", but in the end we all are just humans, with quite predictable behavior. Bias selection of content is since forever one of the more effective ways of shaping opinion. Politics is fighting hard on that front for a reason. For the first time ever are some very few algorithms selecting content for millions of people, with apparently little human oversight. Yes, this should worry us. Simply assuming the results of those will benefit mankind, especially in the long term, would be foolish. It's not quite exactly like the usual ai safety paperclip scenario, but by now it should be very obvious that optimizing watch-time, even with current "ai", comes with significant unintended side effects / drawbacks.