Then who passes your purity test? Do you think Dem’s EVER care who the vp pick is? NO! They vote and win, unlike Repubs that must have purity or it’s tantrum time and stay home and not vote.
And GOP voters, just like the Dem ones, vote for the whole ticket, willy nilly.
It's not a matter of passing any "purity test." It's about selecting a good VP running mate that will make a good president in four years.
There are many people I would rate ahead of Tim Scott as a VP running mate for President Trump. Among them would be Rand Paul, JD Vance, Kristy Noem, just to name a few.