>we really ought to repeal the 17th Amendment and return to state appointment of senators.
This sounds good in theory, but the reason they passed the 17A in the first place was because of widespread corruption in the Senate.
>But then, I'd also like to see legislatures appointing electors to the Electoral College …
That's not going to fix anything either. What they need to do is replace the Constitution and adopt a Westminster parliament like every other decent democratic republic out there. How many countries have a presidential system like ours? Only a few, and they're ones like El Salvador, not exactly countries you want to emulate.