Yes, we should impeach any president that incites an insurrection or pressures foreign governments to interfere in our domestic election, Biden included.
Not my president was a slogan from people who thought Trumps words, speeches and actions weren't presidential. Regardless of their slogans, he was the president. He won the 2016 election. Only irrational people would suggest otherwise.
I don't know why so many people are more loyal to a person/president instead of legitimate elections and protecting our democracy?