My understanding to people opposing politics in certain things, is typically about opposing unrelated political messaging in said thing.
For a free open source web browser, obviously there is will be politics somewhere. FOSS is political in nature. Web standards involve politics, with multiple parties wanting to influence them for their own reasons. Hell, challenging a multi-billion corporation monopoly is inherently political.
Having political messaging about "celebrating voices making the world a better place" is odd and misplaced political messaging, orthogonal to the politics of a free open source web browser, and will alienate part of the people that are not interested in something this unrelated, irrespective to their agreement to said messaging.
I am personally in favor of universal health care. I wouldn't like to see messaging about it in a web browser, just to give a silly example.