This should be great on mobile. On mobile there are no extensions and there are at least two news sites I frequent that abuse it by showing a full page popup before every article.
1) Use DNS66 as another user said. Doesn't require root. (Does make a local VPN, so removes option to use a VPN.)
2) Use Pi-Hole on a Pi at home and make a VPN to it. Bonus: you get access to your home network (if you config it as such) and are secure over open WiFi and hostile 4G. Doesn't require root.
3) You can root your phone and use /etc/hosts or IPT
4) Firefox 58 will allow you to run tabs as "apps" which are pinned in the OS. If that takes off, that's going to result in a massive dent in paid apps from Google Play as well as ad revenue from Android.
As for this action by Google, its a charming move. Remember that time when Google was just new, and was only text ads on Google search engine?