Most people don't understand the topic well enough to make an educated decision. Romney was not illegible. He also wasn't POTUS.
Oh, I think Romney WAS “illegible”— virtually unreadable as to how or why he would be ever considered a conservative (to include his vast offshore holdings, and frankly, having never worked at a job (exception religious proselytizing required by his church as a teen) in his life. And also, quite foolish using the “47%” commentary that shot his campaign to a large extent. No doubt a nice guy and a businessman.