Seems an appropriate thread for last night's Radio 4 Archive episode about YouTube:
Archive on 4 doc
Basically the point of YouTube is to keep you watching, clicking away on video after video for as long as possible, it's how they make their money - lots of it. But the algorithm to do so has been favouring the extreme right and paedophiles, according to new studies, creating a self-serving addiction to fake news, intolerance and sexual deviancy in many, many viewers - even provoking terrorism and mass murder.
This would explain why, for instance, if I look up an old TV 70s clip on YT, my recommendations get clogged with videos of bigots "pwning libtards LOL" and the like. And I thought Facebook and Twitter were bad.