It is intellectually dishonest to refer to people undecided in this (US) election as being in the center.
Both of these men have been POTUS, with wildly different results. One of them has done a much better job by every measure.
Do I wish he was young and charismatic? Of course. Do I always agree with him? Of course not.
But don’t pretend that being a bad speaker, being old, or being too centrist on some issues makes Joe Biden no better than Donald Trump.
They are not the same.