Your position is ridiculous..... When a voter sees a name placed on a ballot, that voter will reasonably assume that candidate has been properly screened and that name belongs there.
Most candidates are eligible. It would be a waste of time to run otherwise. If there are doubts, voters will hear about it and make the decision. And, after they decide, the electors have to decide, also.
I feel very comfortable about the process. It's worked for a long, long time. I'm not worried that Prince Charles is going to come over here and win any elections. ;-)