I think us “nerds” dramatically overvalue how important privacy is to the general public right now. Even ignoring the developing world, most people will agree that tracking is bad, but most will continue to use legacy browsers because they don’t think it’s 100/year bad. And the growing population of young and tech savvy people who are one Google away from installing uBlock Origin will not pay for your product either.
Not to mention —- even the proportion of HN readers can take other measures to approximate anti tracking anyways. uBlock Origin + Pihole + a good VPN is enough for even most of us (personally, it is enough for me).