Checkout your locale settings on your Xbox. Is it set to Venezuela? if so, change it to USA and try searching again. It seems it's based on that crap. Still, I got more people in "simple" than in "ranked".
Free Step Dodge
FakeSypha
TRI Mike
It's set to US. It's never been set to Venezuela. I can find simple matches but since I'm still F rank it puts me against people who doesn't know how to play and I want opponents to kick my ass so I can learn.