umm, arnold was white and hadn't really trained his calves with any real intensity prior to coming to usa.
yes i suppose ronnie could have brought down his thighs, but that wouldn't have helped. he would have had shit thighs and shit calves.
dorian yates would be a good example for ronnie to follow.
great thighs and calves that ronnie could only dream of, in perfect balance.
or, maybe to follow your logic, it wasn't genetics that gave dorian great calves. maybe dorian was just a lot smarter than ronnie, but i'm not gonna even touch any desires to stereotype.