Under Section 3 of the 14th, their insurrectionist politicians and judges can and should be removed from current office and banned from future office, now.
Under Section 4 any debts or obligations incurred in aid or insurrection can and should be voided. The lenders supporting such activities should be reminded any such investments are valueless and unenforceable. Those responsible for institutional investing in their support should be removed for failure of their fiduciary duties. I'm not sure whether Section 4 can be extended to state and local tax obligations, but it's worth investigating. Section 4 also bans slavery reparations.
Section 5 gives Congress the power to act on this. Alas, it will take new leadership and reinforced pro-American majorities to give it the will.
For those reasons alone--though there are many more--it is absolutely necessary to elect pro-Trump congressmen.
The two American political parties are now (1) the American Party (i.e. the Trump Party) and (2) the Anti-American Party.
The Republican Party (i.e. the Anti-Slavery Party) is the natural heir to the American Party. The Democrat Party (i.e. the party of slavery, Jim Crow, the KKK, voting felons, illegal immigrants, communism, racism, Robert Byrd, the Clintons, et al.) is the natural heir to the pro-slavey party.