I no longer visit websites that block people who block ads. Not out of spite, but because the content they produce is of such low value that I have no incentive to pay for it if offered (either with money, or with my attention for your ad supplier). And this is my contention with 99% of content produced on the internet in general.
Could we move beyond adblocking and start blocking such sites directly? I don't want to even visit websites that only grab content from other sites. From bots making nonsense pages for getting in your search results to news sites grabbing a story from another news site and rewriting. I've seen plenty of sites that just copy Wikipedia or StackOverflow content to show it with ads and with no added value on top.
In theory, Google should be penalizing these sites left and right, however, since many of them appear to slip through the cracks, this would indicate that the problem is much more difficult to solve than it seems.