You're free to pay for youtube and not see ads. I personally don't know how people use it without paying. It's no different from a streaming service like Apple TV and it's clear Youtube wants to go that direction, but people treat it like it should be entirely free or lightly ad supported only.

Netflix as a streaming provider was paid from the get go and only provides professionally made content. It's closer to the way we normally buy things or something like an internet subscription.

For youtube, different people are going to have different reactions to their business model.