One can be anti-Google and still use Google products. The browser is an exceedingly important piece of software. For some people, the cost of switching to something other than Chrome is too great. Maybe Firefox doesn't work well. Maybe they hate Safari. Maybe their favorite extensions aren't available. Whatever the reason, the cost of switching is greater than the price they put on their anti-Google stance. And that's okay.

Personally, I switched from Chrome to Firefox a long time ago. But I still use plenty of other Google products. I'm overall anti-Google, but I'm not a religious about it. I disconnect from Google where I can, and support products that match my views when I can.

If anything, I'm surprised the percentage of non-Chrome users your site encountered was as high was it was. Makes me kind of hopeful.