Using the logic that States have sole rights over electors and elections, like the democrats did after the civil war, leads to blacks only having 4/5th the vote of say a white person.
This was the insanity of the Democrats after the Civil War, and I am certain you remember the SCOTUS ruling that this was a violation of their Constitutional rights. Indeed, conservatives are a minority in many places. Should you only give them 4/5th of a vote, or defraud them in elections, it’s the same violation, just not based on skin color.
Your argument that State’s can ‘do what they want’ failed in the post Civil War America. Race, Sex, Ideology, doesn’t mean you don’t have equality. So yes, I believe that they have a rock solid argument for the SCOTUS because they are ‘trapped’ by their previous decisions empowering minorities after the Civil War.
Yes, states’ powers to choose electors by popular vote, if their legislatures decide to choose electors that way, are constrained by their peoples’ rights under the 14th, 15th, 19th, 24th, and 26th Amendments. Those amendments confer rights on individuals, not on other states. Texas has no standing to sue over the violation of another states’ citizens’ right to vote.
leads to blacks only having 4/5th the vote of say a white person.