BK has a lifetime appointment currently - how do you draw the conclusion that: “...his career is pretty much over.”?Because if the democrats make this stick, impeachment off the DC circuit logically follows. If the charges stick, he's open to perjury charges from the hearing. That's why Kavanaugh refuses to fold.
Would the republicans try to stop it? Hell no, they always go the CYA route.
If perjury charges were filed every time one person's versions of events was believed over another's, almost every single trial in this country would be followed by the loser getting tried for perjury. That simply does not happen.
Realistically, perjury isn't even on the table here.