Ballots are still being counted, the recounts haven’t yet begun, nor has Trump’s case to make sure only legal ballots were counted. Trump hasn’t given up, so neither should anyone who supports him.
If mass voter fraud does turn out to be proven and Trump ultimately wins, all of this will have been a blessing because it’s exposed all the back-stabbers and fair-weather friends amongst the GOP, Trump’s base, and media outlets like Fox News.