Between the natural demographics, Anti-Trump movement, DC/PR statehood, & amnesty for immigrants, unless Biden screws up really badly the Republican Party is likely to disappear like the Whig Party did in 1850s when it's base splinters over slaves.
Funny how with the most unpopular candidate imaginable and an incessant white Supremacist narrative the GOP still gained votes in African American, Latino, and other minority communities. It is almost as if people can think for themselves and have values and goals that differ from the boxes you want to put them in