Yang's not even that rich.
I would add that it would seem a bit weird to offer Secretary of Labor to someone whose platform was free money regardless of employment.
I do wonder if blue-state Republican Governors could announce that they think it's important for their state to be represented in a cabinet, so that if anyone is nominated to higher office, they pledge to appoint an acceptable placeholder until a special election. What would be there to keep that from happening?
The argument against mail-in voting is that it helps Democrats cheat and fabricate votes, not that larger turnout dooms Republicans.
I'll note that there are probably safeguards available to prevent anyone from using mail-in voting to fabricate votes (IE- careful records of who voted to allow anyone to check if someone deceased/ non-existent sent anything in), so I'm not as worried about it. But the safeguards are non-negotiable.