That’s swell, let them know that when they decide Half Elves are OK but only if they look more like Humans and less like Elves, in which case since the request wasn’t there’s to begin with, and only offer their “is allowed if” as a way to take away more of the High Elf idea, aren’t owed jack in changing our view of it.
Which i don’t need to remind one such as you, that is exactly their goal.