What about all the projects being posted lately (quid, Mozilla with scroll, brave Browser, etc)?
I think the friction of getting started, both as creator and as contributor is still too high. I created a proof of concept site about this as well (https://news.ycombinator.com/item?id=20448087), but I don't think that's an ideal solution either, just maybe a little easier to get started. Any feedback is welcome, of course.
Or you could spend $65 on a raspberry pi and install pi-hole. Then a huge amount of advertising and tracking never gets accessed and everything goes faster. This is a little more pragmatic then expecting all advertising to go away.