Because they care more about their viewers than anything else. The rubes have spoken: Trump is god and anyone that refutes that is a leftist commie.
Fox tried to do the right thing on Saturday. They called the race for Biden and then tried to shift into opposition party mode. The trumpkins would have none of it. Their god said he was cheated and Cruz and Graham validated it. Once someone outside of the Trump family spoke up to support that narrative the breaks were off and the GOP went full throttle into the abyss.
From where I’m sitting, it LOOKS like this is all just pandering to the base and to Trump’s bruised little ego. He has the base, and if he does indeed start a PAC, he’ll have all of the small Trumper money. As of right now, he’s just asserting his complete control over the Republican Party and the politicians have no choose but to play along.
If this goes 1 day past November 23rd and PA doesn’t certify their election results, that’s when shit starts to get real. Up until that point it’s all just pandering and preening for Trump and his minions.