There's dozens of us! Dozens!
But more seriously, there's actually lots of us. You don't hear about us because we don't narcissistically post about it on facebook. We just block shitty software and move on with our lives.
I have no stats for you though, because stats are usually collected through third party trackers, and I block them all, so I'm never represented on anyones metrics. Based on some rough stats like these[1] and my own experience, I'd guess something like 1-3% of the population in western countries.
[1] https://www.quantable.com/analytics/how-many-users-block-goo...
ad blockers: ublock origin
ad and tracking blockers: umatrix privacy badger
tracking blockers: cookie autodelete decentraleyes
other: httpseverywhere
I'm mostly blocking trackers.