You can very easily turn auto-play off. There is plenty of opportunity to switch videos. It would be different if youtube forced you to watch the next video in order to use the site.
>For the neutrality, if you recognize there are agreed upon rules, as you point out, the next question becomes who agreed on these rules, and who made them ?
Youtube made them. Those are pre-conditions for uploading videos. They don't have to have any reason why they made them, those are conditions that must be met in order to upload a video. So by uploading a video you are agreeing to them.
>Any rule in place is positive to a group and negative to another
I don't agree with this generality. However, this discussion is not about the legitamacy of the rules to use youtube, it is whether or not youtube should censor videos, (that meets basic rules of use). My opinion is no, your's as you stated above was:
>I personaly think anything dealing with human content can’t be left neutral, as we need a bias towards positivity.
I agree with you that Youtube should routinely challenge their own rule sets. That is not the same as censoring their content, or in this case modifying their recommendation algorithm.