Well, we have a full blown insurrection going at the border for one thing. You can argue that it isn't but, to Robert's point, if they argree that the states are the deciders there are some that will or could agree on lots of things.
And Kamala participated in insurrection, so we can't have her. She egged on months of deadly riots and personally contributed to and call for others to contribute to the bail and defense of riotious insurrectionists around the country. We certainly don't want her on the ballot.
And it could get worse if Colorada case held up, because the next move would be to see what the implications are for the Maine Secretary of State case, whether that held up...and so on down the line. The Maine case is a matter of just on isolated, no due process, or answerable to anyone else public official deciding what an insurrection is and if someone should be on a ballot. If that were ever held up you would find an unlimited "just one public official with an opinion" in lots of red states.