That's a bit hyperbolic. The areas of the internet I frequent do not have egregious ads (for example, this page). Areas where I really would like good ad-blocking (youtube) are often not covered by these ad blockers. Thankfully Youtube Premium isn't too expensive and solves that issue.
Maybe it's better these days but I always found browser extensions (including uBlock) had a pretty big performance hit, so I've always shied away from them (with the exception of a password manager).