re: Barrett joins liberal justices on Trump ballot ban ruling going too far

"The "conservative" justices (there shouldn't be any type of Justice, but that's another topic) ruled and then slammed the door on future bullshite. They basically said, "No, and also don't pull this bullshite again because X, Y, Z."

I agree with you and so, I suspect, would ACB. The problem, from a jurisprudential standpoint, is that the "and" part of what the majority did is inconsistent with the longstanding principle that the Court should not decide things that are not necessary to dispose of the case before it. You just made ACB's case for her concurrence.