“Let’s start with the obvious — a tyrant sits in the White House,” Walsh added. “The very thing our Founders feared most is here. Throw in the fact that one of our two major political parties is a real and direct threat to democracy and the rule of law. These are unprecedented, dangerous times in America. I know it. You know it. There are even Republicans who know it.”
Unless the US adopts some kind of proportional representation system (or even at the least discards FPTP), doing that would only ensure that no progressive voices are heard in the government.
The better and more practical option is to take over the democratic party. That is unless you want to have no control over the government.