Using that content without paying for it (with ad impressions or direct sales) when those payments make the creation you consume possible in the first place – there is no moral high ground in that.
By ad blocking you're just taking things for yourself while relying on others to pay for your share of the cost to produce the content you're consuming. Zero marginal cost is not such a big intellectual barrier to understanding that this is unfair and unsustainable.
People are quite content with ad blocking only because someone else has to pay for creation of the content they consume. Of course people are content getting a better deal than other people.
But you can't translate this individual selfishness into a general society-level desire because ad blocking only works when not everyone is doing it. On a society level, if you don't pay for something, you don't get it, because there is no one else to pay for it. Whereas what people want is to get something without paying for it.
And if you claim the society is in agreement that ad based business models are unacceptable, I'm yet to see any indication of that. People really like not paying for things with money, and ads let them do that.
But what people like to do even more is taking without giving in the name of some unconvincing ideology.