Hate online is a huge problem, and if Mozilla think they have potential to solve that problem, I’d say they can go for it. It’s their budget, not mine or yours.
Mozilla right now should focus their efforts on being profitable (or at least sustainable!) without relying on Google, Baidu and Yandex. Ideological or political pursuits should come later.
So is climate change. They really should focus on that problem, because it's literally endangering our planet, not just the Internet.
Or they should keep their focus on a more narrow topic that they actually understand and have some success in working on.
I've yet to see mission creep that didn't turn into a problem very quickly.