Well, if it is declared unconstitutional then it all ENDS and we can get on with life!
I'd love that, unfortunately you can't go to the USSC and ask them to rule on impeachment, it's strictly a matter for the House and Senate.
Plus, Roberts is the judge presiding over this circus so if he had any inclination towards declaring this mess unconstitutional he'd intervened when the democrats finished their jabbering and it was obvious there were neither high crimes or misdemeanors in what they presented.