As if Democrats haven't done the same...
They have not.
Need I remind you of the Kavanaugh hearings?
The difference is that Dr. Ford's attempted rape allegations were extremely credible and more likely than not true, as were a second woman's (Deborah Ramirez was her name IIRC) sexual assault allegations against Kavanaugh. There's a big difference between saying a would-be rapist facing extremely credible allegations of both attempted rape and sexual assault does not belong on the Supreme Court and making up false allegations to try to smear a political opponent.
Just curious, what makes allegations credible?