There’s some valid reasons to criticize Kamala, but they’re all about her being too far to the right.
Every bad thing about Kamala (and there are things bad about her) trump is objectively worse with.
It creates this weird situation where Republicans can’t criticize her for anything her voters don’t like without hurting trump worse, so they have to resort to random weird shit like demanding proof of a college job 40 fucking years ago.
That being said, SSA would actually have records to prove this, and if Republicans knew anything about how government works they’d never make a claim this easily disproven. We’re insanely lucky that Paul Ryan stepped back for politics and went to think-tanks. He’s still a problem, but if he ran in 2016 we’d all be incredibly fucked right now