You may not like a feature, which is fine, but a lot of people do.
Sure. I agree with that. But I think you're seeing this in reverse of the point I was trying to make. My point is that you might think this feature is mission critical, but a lot of people do not. The purpose of my previous post was to imply that you are over-emphasising its importance.
Firefox does have ads on by default for the startpage, but they can be turned off in the settings in a fairly easy and obvious way. So even as obnoxious and demoralising ads, I don't think it is fair to say these ones are "persistent and unavoidable". (It's not easy to remove the Firefox logo from the new tab page, and that annoys me, but I wouldn't call it an ad.)