In which case the states will step in. We're already seeing this happen post-Dobbs, with blue states falling over themselves to create safe havens. If Congress can't get anything done and the courts won't let the executive branch do anything then that trend will continue with workers' rights and everything else.
Maybe our problem is that the country has just gotten too big to run effectively as a single 350-million person democracy, and it's time for the state governments to step up and stand up for their people.
Either way—federally or at the state level—we need written laws drafted by elected representatives in a body that has more inertia than the single position of chief executive.