Power has been leaking out of Congress into the executive branch all year. SCOTUS is expected to ratify part of that process by eliminating independent agencies, with the possible exception of the Fed; the oral argument on the case that will overturn the pertinent 90-year-old precedent is today. What happens then? What can Congress do to save itself?
SCOTUS is effectively demanding that Congress legislate constantly and clearly to force the executive branch to do its bidding. In the current hyper-partisan environment, that means eliminating the filibuster, with all of the risks that entails. There simply is no other solution.