While context is important, I’ve found that the context of who someone is personally is rarely beneficial when being objective. If anything, this approach is anti-ideology, as you are not taking ideological bias into account...and there’s way too much ideological bias in discussions these days. I think that’s what I meant by maturity.

Calling someone's argument or stance immature is immature.

With that mindset nobody should use that word. We should wipe it from the dictionary.