Let me return the favor. And I'll do it without yelling.
Current Pennsylvania law says the candidate's party will appoint electors, not the legislature, and that such electors will be elected by the voters of the Commonwealth. The Pennsylvania legislature can change that, but I would think that would require a law doing so be passed and be signed by the governor. Even if that were to happen, changing the rules after the election would never make it through the courts.
The state legislate can throw out the election results and in the case of PA select 20 electors of their own choosing and it will stand up to any legal attack.
I won’t raise my voice either but the “elected by the voters of the Commonwealth” part includes, inherently, “according to the election laws we pass.”
That violates the U.S. Constitution on its face. No state law can supersede the Constitution.
No post facto laws. The election has occurred.