It's hard changing the Electoral College, because it would require a constitutional amendment or a constitutional convention. In either case, it requires the support of three-fourths of the states. Let me put it bluntly: As long as California remains in the union, the other states would be crazy to tamper with the Electoral College. It's what keeps them relevant, for now, in presidential elections.
However, the Democrats have another plan to make the U.S. a one-party state. It's called voter fraud. You and I and every rational person knows it. It worked to perfection in 2020.