Nah, bigoted would be saying “these people are inferior humans because they have stupid beliefs.” Or perhaps the act of infantilizing people for use as an ideological cudgel.
What I am saying is that they are very normal, run of the mill humans, and that having stupid beliefs is pretty typical of the human condition, writ large.
The way these flush mechanisms work is adjustable. It’s entirely possible that someone adjusted them to have both have similar volumes for whatever reason