ScrewballTLDR he wants to play where he thinks he can play.
There isn't anything wrong with playing where you think you belong, that's perfectly normal. It's the fact you keep saying you are better than an entire league and feel like you would obliterate anybody in open. I'm sure you would do fine in IM, but it is incredibly ignorant of you to claim you could learn nothing in open and would carry any team that picked you up.