Obviously it's his prerogative to choose who he and the Senate want, but then nobody should be outraged when the impartiality of his appointed judges is questioned.
edit: I'm rate-limited so can't reply, so here's my reply below:
It's a matter of degrees. For example, when Biden made it clear that he was hiring Ketanji Brown Jackson in part because she was a progressive black woman, she still had a massive amount of relevant experience and professional reputation. There's the understanding that while she obviously has a political bias, she's still a good judge. She had worked in district court, appeals court, she'd even worked as a public defender. She had an exceptionally long list of cases and legal opinions she could point to for her experience.
Meanwhile, contrast to Amy Coney Barrett, who had never been a judge before Trump appointed her into the Court of Appeals as a fast-track to the Supreme Court. She'd never tried a case all the way to verdict. She'd never argued an appeal. Her background was purely in academia.
