This could tactically work for them, given that the Republican Party has been hollowed out by a transnational crime syndicate, leaving conservatives who aren’t fascists and don’t want to see America burn without a party. Still sucks to be the progressives they’d kick to the kerb, though if this craters the Republican Party, it’ll leave a vacuum to be filled by a second party, the most obvious candidate being the Democrats’ marginalised left wing. So America would end up with a centre-right Democratic Party, which would be somewhere between Eisenhower Republicans and the German CDU or similar, and a new left-of-centre party, which would basically be the Dems minus all the Manchins and Blue Dogs and other spoilers. (Unless there is significant electoral reform, both would be the only viable parties, and each would be a broad church.)