Either side, with few exceptions, would likely be fine with whatever it takes for their candidate to win the election. Trump and his supporters were sure voter fraud would happen prior to the election. It's no surprise they're so convinced it did happen now that it appears he lost. Any irregularities or issues they don't understand are seemingly labeled as fraud.
However, most of the legal battles being fought are without merit and/or involve an insignificant amount of ballots. Right now it just looks like an attempt to erode the confidence in the election outcome. A responsible leader would prove that the mass voter fraud allegations are true in court before proclaiming them to be so, or before claiming he is the rightful winner of the election. But I believe that Trump would burn everything down if he could be president of the ashes.