“The 2 states where the OP will have the most success finding gripers will be California”
While Cal parents may be the loudest on c/c, CA’s freshman enrollment of in-state is 81%, the griping happens more on not getting into the UC you want as opposed to being totally shut out, which maybe is what the OP is looking for. States that have already been mentioned, along with PSU (43% OOS at main campus) are probably going to have a lot more gripers, at least on a relative scale.