What if the looser of the presidental election automatically had to become the vice president ?

No I think it would not be fair. I am not from American but I think he American election system introduced by the constitution makes a difference between the votes for the President and the Vice President. So I think it is fair like it is because if there are different votes and different offices there schould be different losers and winners.

But I do not want to say, that there are never losers in that Office.LOL