There is no one thing that could help the republican party except to split and form a new one. And in that new party they need to condemn racism first and foremost. But of course they would just lie and say they condemn it. I mean prove it through policy proposals, changing their gerrymandering lines, and putting up diverse people as their electorates. Then reform the police with diversity in their neighborhoods throughout republican strongholds. They would need to stop attacking and suppressing voting rights. They should consider banning the electoral college. They need to condemn confederacy in every way.
To continue along as a republican party at this point is the prelude to a civil war. Plain and simple. And that is exactly what they want so they will never split. The party is a complete lost cause infiltrated by terrorists, sympathizers, russian sympathizers, nazis, klan, confederates, QANON, boogaloo, and the philosophy of fascism. Republicans that actually still care about this country now have a reckoning to go independent, become democrat, or as stated start a new one.