The thing that I don't get is that if the SCOTUS will not hear the case because they are concerned about making a ruling that would impact the presidency, then on the same coin, by not getting involved you are making a ruling that is impacting the presidency.

They are there to hear cases in constitutional questions. There is a clear constitutional question that has massive impacts. If you aren't going to hear this then you are complicit in the clear breaking of the constitutional requirements regarding federal elections. At a MINIMUM, they must hear the case. There is too much on the line for them to not hear the case.

And if they think that they will remain SCOTUS after a potential upcoming civil war, they would be fooling themselves. Neither side will allow them to remain after SHTF.