The Repubs know the only way for them to have control over the nation is by minority party rule. The changes in demographics aren't pulling in their favor and they know this. Also, the more educated the nation becomes the more of a threat it is to the Repub's efforts at seizing control.
Knowledge and wisdom is the enemy of a party that rely on lies, disinformation, spreading rumors, innuendo, whack job conspiracy theories all while they attempt to dismantle the inner workings of a democracy that is, by sheer numbers and attrition, working against them.
This is exactly the situation the Repubs put themselves in from having their isolationists, racists, theological extremists and regressives take over the party.
The more Biden proves to the nation that it's the Democrats that are promoting the welfare and concerns of the middle class and the poor while the Repub leadership's only concerns are for establishing an autocratic form of gov't, the more radical and anti-democratic that party of theirs will have to become.
It seems inevitable considering the way the Repubs are behaving themselves, distilling themselves further into the realm of becoming outright fascists and religious fanatics.