Because the judges are activist assholes upon which there CAN'T be any case they'd accept.
You know your argument would hold more weight if these judges were not Trump appointees (and Republicans):
"But Bibas, 51, is not just another judge on another court. He is a Trump appointee on the U.S. Court of Appeals for the 3rd Circuit, with jurisdiction over Pennsylvania and two other states. A former member of the conservative Federalist Society, Bibas was appointed in 2017, one of 53 appellate judges the president has put on the federal bench since he took office, more than any other president since Jimmy Carter.
Bibas is not the only Republican-appointed federal judge to dismiss Trump’s claims of rampant voting fraud and tabulation irregularities. Steven Grimberg of the Northern District of Georgia and several other Republican-appointed judges, have ruled against the president.
Judicial independence
To skeptics who view judges as little more than politicians in robes prone to issuing politically motivated opinions, the notion that a Trump-appointed judge would weigh against the president’s interests may be hard to fathom.
But that is a misconception, said Joseph R. Grodin, a former associate justice of the California Supreme Court. Despite the country’s deep political and ideological divisions, “judicial independence is alive and well,” he said in an interview with VOA.
Grodin said most judges simply follow the law and decide cases on their merits, so it was no surprise that Bibas found the evidence-free Trump lawsuit without merit.
Jonathan Turley, a conservative law professor at George Washington University, noted that federal judges are given life tenures designed to protect them from political influence.
“The federal courts have worked precisely as designed in the last four years, but particularly in the last four weeks,” he said. “Federal judges, including Trump appointees, have consistently ruled against the president’s challenges to the election. They have stated that the president has not submitted sufficient evidence to justify the type of sweeping relief that he has requested.”