There’s an awful lot of people who were talking about the underlying economic realities that were challenging the Biden campaign, like inflation, who have pivoted to “Biden Old is what matters” and I’m not sure which of those criticisms, if any, was being done sincerely
my sense is a lot of it was/is just "well Trump is so fucking awful, how is Biden losing? let's try this argument, let's try that argument, one of 'em has got to be right"