I'm not a lawyer, but I would argue that other parties have already attempted to dispute the unconstitutional election changes in those state courts, including

I'm not a lawyer, but I would argue that other parties have already attempted to dispute the unconstitutional election changes in those state courts, including their supreme courts, and they've been unanimously dismissed for jurisdictional or procedural reasons. For example, I believe the application of laches in Pennsylvania to be improper because Republicans had sought a stay of the election changes prior to the election. Thus far, it appears the Pennsylvania courts refuse to adjudicate the constitutionality of these election changes.