I think it's a to each their own kinda thing, but literally the only reason I don't personally OC is to have an advantage and a choice to deploy or not.
I think OC is great and I think we should all fight to retain the right. It's just like 44M doesn't see the need for "assault weapons", if you don't support OC you're not part of the solution.
As gunowners we have to stand together even if the other person's choice isn't something we choose to exercise ourselves. Not being heavy handed, but just because one person chooses OC over CC or vice versa it does not make one party better than the other.