"What DeSantis backers don't grasp is that any Presidential aspirations he has are over going forward."Well, here's his problem -- Youngkin is the nearly unassailable presidential candidate in 2028 as TrumpII's VP.
Now, nothing prevents VP Youngkin from bringing DeSantis aboard as his VP in 2028.
That assumes Youngkin could win the nomination. If Youngkin is a Republican establishment lapdog, he has no chance. And, I've seen nothing about him that indicates the base of the party would accept him.
The days of Bush-style Republicanism are over.