One person who criticizes Mozilla mentioning politics is not a legitimate excuse for you to paint the entire class of people who complain about Mozilla with that brush. Ironically, doing so is vaguely fascist, in the sense that fascists love to spread the blame for individual crimes across entire classes of people they oppose.
Incidentally, who's comment are you even talking about? I don't see any mention of politics in the comment you responded to.
It's not one user, but it's also reasonably valid: There are browsermakers who just try to make a good browser and don't talk about politics incessantly, and as far as I can tell somehow their products seem to improve a lot in ways Mozilla's just doesn't.
EDIT: As an example, Firefox is discontinuing search keyword sync via bookmarks. Vivaldi just implemented syncing search engines via their sync service, across both desktop and mobile.
Incidentally, who's comment are you even talking about? I don't see any mention of politics in the comment you responded to.