Thats your opinion, Obama could have been white, and he still would have been voted for by 99.9% of those who voted for him. Young Kennedy-like candidates are rare (eg Bill Clinton and Barack Obama) but are incredibly electable when they show up.
Towards the end of his presidency, most of us forgot he was even black. Just those white southerners and a certain old guy in New York who were fixated on his race from the beginning still thought he was a DEI elect.