Not a 100% certain why you have such a hostile tone, this is simply a discussion agree or disagree we have no reason to be combative with one another. That said I was not part of the group that initiated the kick, I was simply the tank that filled in when the asked within our discord. That said this conversation came about due to debate that came about within our discord group. I do get where you are coming from, but at the very least I do hope you can see where I come from even if you do not agree with it. While I cannot say for those that removed the tank, if I were in their position I probably would have done the same, though it is hard for me for to empathizes with the tank that got removed since I have only ever played tanks, and I tend to be extremely compliant with what the group wants even if it ends in failure, since that is how I learn best trial and error.
Though I will say the group is entitled to each player trying within the best to at least try to conform with the group. In my opinion no player has the right to hold any individual play style over the heads of the group, be it lack of AoE, ice mage, melee rdm, eos only healing sch etc . . . to me all of these are no different from a tank that simply refuses to at the very least "TRY" step outside their comfort zone. I personally would never kick or remove someone for trying and failing, nor would I expect a group to match my pace if the overall group does not want to. For me the group is king, since it is a collective effort. For me the most important part is that they try, I get how that could seem like a demand since yes I would be more inclined to remove a player for not being willing to try, though it is not I just think it is unfair to think that one person should dictate what the group does.
In the end if I created the hostile tone in my head, that is how I imagined your post sounding in my head I apologize if this is wrong.