You are very fortunate: In my 20 year career, I've spent most of it surrounded by zealots, including at very well known firms. I am currently surrounded by multiple teams with extremely tight ideas of what languages they want to work in. All different ideas, yet they are working basically with the same constraints: it's not as if they ware doing very different work where another team's language would be unfit for purpose. The performance is similar, and they are basically in a culture war. They have passionate arguments listing why a different team's choice is all wrong: None hold any real water.
I am especially valuable because I am fine reading and writing any of the languages involved. The management likes that, but there's a lot of difficulties solving the tribal problem, as the leads are basically all crazy zealots, and it's not as if purging one or two factions of zealots would avoid further zealotry from the survivors. The fact that I can work across all their tech doesn't make me many friends, as my work across systems shows their arguments have little merit.
For most work, in most cases, most languages are just fine. The completely wrong tool for the job is pretty rare, and the winning argument in most places is "we have the most people that have experience with tool X, or really want to try exciting new thing Y", for whatever the problem is, and whatever X might be.
