The core of the Republicans from the Reagan though Bushes era is still intact. They have some ideological disagreements with Trump’s MAGA group (particularly on foreign affairs and immigration), but that’s about it. Given Russian and Chinese imperialism, the foreign policy differences may shrink, and given that the labor shortage is seriously causing inflation that objections to immigrants may become moot. The core Republican belief in capitalism and social moderation are shared by the MAGA faction as well as the traditional Republican mainstream.
The political question is to what extent the Republican party can keep the MAGA group with Trump, and more importantly, can the Democrats reabsorb those who they called the “deplorables” (the Biden/moderates probably can get them back, whereas the WOKE/progressives probably won’t be able to).