Wow.
As a lawyer, you make a decent men's room attendant.
This is not a FEDERAL ELECTION. The voters are not voting for a PRESIDENT, they are voting to choose the state's representatives on the ELECTORAL COLLEGE. Each state is holding a STATE ELECTION to do this, and Texas has NO STANDING to tell other states how to run their own affairs.
I see you are also arguing points that no one has made.
The Constitution tells states the process for changng voter laws. 4 states acted unconstitutionally in not following that process.
Texas is suing them as a result And they have an airtight case.