I add websites to my host file if they express desire for me to turn off my Adblocker. 99% of the time I can find a rehash of their content elsewhere. Since popular stories will get printed by 20 other publications with slight wording tweaks.

Google makes no such statement towards me. I don't use Facebook. Though that has nothing to do with my thoughts on ads more-so than my dislike of Facebook.

If nobody visits a site because nobody wants to see the ads and the site is in the red, they'll still be going out of business if they do not switch business models. Given I don't care if they go out of business sooner or later - they can enjoy their time of declining consumer base before eventually shuttering their doors because they refused to find a sustainable business model. I'll do them the courtesy of not bleeding them out more quickly. Much like how I do not abuse "no questions asked, money back guarantees".

I would absolutely use that ad blocker. In fact, I think umatrix or ublock origin could be configured to do so. It's a good idea, and I'll look into it.

I do not indeed ever use Google or Facebook. As I said, I do not approve of their business model, nor do I wish to participate in it.