I'll repeat the question I asked earlier (and this isn't meant as a gotcha, I'm genuinely interested in teasing out your position): Reagan pledged to name a woman to "one of" his first Court appointments, but didn't make it explicit. Trump pretty much pledged to pick a woman to replace Ginsburg. Bush 41 didn't make any kind of public pledge to appoint a Black justice, but it was obvious to anyone paying attention that was always going to be the plan.
In your view, is there any line to be drawn between what any of those presidents did and what Biden did? Is it the categorical nature of his pledge that bothers you?