Agree, I have been questioning this line of thinking since it started.  Kamala is under no obligation to resign until Jan 20. Plenty of incoming POTUSes and VPOTUSes wait. Biden did in on Jan 15 when he became Obama's VP. Al Gore did it on Jan 2. Dan Quayle did it on Jan 3. Walter Mondale did it on Dec 30. JFK, LBJ, Hubert Humphrey, I could go on. This is a complete and utter non-thing. https://en.wikipedia.org/wiki/Resignation_from_the_United_States_Senate