If you run your own rendering engine you lose accessibility. If you add aria tags to stuff in order to make it accessible, adblockers will be able to read them as well.
I don't think advertisers care about accessibility. Not the same companies that want auto-starting video clips in your browser.
As for the site owners - unless it's someone large enough to care, I think the usual choice between "letting a few disabled persons access the site" and "getting a few more bucks from advertising" would be quite obvious. If that question would even arise.
As for the site owners - unless it's someone large enough to care, I think the usual choice between "letting a few disabled persons access the site" and "getting a few more bucks from advertising" would be quite obvious. If that question would even arise.