If you’re referring to people as “cultists”, consider that your point might not be as strong as you think. If you have a non-emotional argument about a browser, try making it with logic and data rather than emotion. For example, demonstrate awareness of where the browsers rank on the features which web developers really need (Google’s devrel team likes to highlight PWA features almost nobody uses even on Chrome) and show why the “walled garden” metaphor applies more to a niche browser than the dominant one by a large margin.
