If you look at the data, there were a shit ton of ballots that had only Biden chosen and no other candidates marked on the ballots.
That would be why.
To know this I suppose you have looked at the data. You looked at the ballots. Well, maybe not.
Are you asking a Republican to use "logic"?
I have seen a Republican use logic. I have also seen elephants flying past my window, and a lizard giving live birth to a rhinoceros.
@anglophone Have you been dreaming in technicolour?
I have no time for any mental midget who gets upset when their errors of cognition are pointed out to them.