One other issue - this begins to take the “highway money” club away from Congress so they can’t use it as a tool to force compliance with an unpopular agenda (such as their use of the club to force Montana to impose highway speed limits pleasing to the Feds.) It also removes the same club from the arsenal of the President; during his terms, the Obama Administration routinely made sure states that didn’t vote for him, like Texas, got mysteriously shortchanged on what they were supposed to get just to maintain the Federal interstates. Yes, Obama weaponized the FHA.
The Feds can’t withhold money they never got their hands on.
A positive side, granted.
“One other issue - this begins to take the “highway money” club away from Congress so they can’t use it as a tool to force compliance with an unpopular agenda”
Don’t worry, they’ll have plenty of other ‘tools’ to force compliance. You can bet your house on it.