One good thing is that it would become _very_ difficult for a democrat to ever win enough electoral votes to become President.
That’s probably why the Dems would fight it ... If they were to get, say, even 8 Senators vs the GOP’s 4, their net gain would be just +2, while the overall House representation would not change significantly. Similarly, the grand total EV’s would stay the same, but their net advantage would drop from 54 now to perhaps +20.