I think the two of you are having different arguments together.
You're saying it's a contributing factor and they're saying it's not the cause. Both of these things can be true.
We are taught in school that planes can fly because of the shape of the wing. That isn't necessarily true even if it does have influence. It can happen without the wing shape. It may happen more effectively with it, but that wasn't the claim.
You can both be right here.
Yes but he serves a different community