I have no doubt the day will come when Trump will echo the words of his hero Andrew Jackson after the supreme court declared his actions against the Cherokee people unconstitutional: "This is a fine ruling, now lets see them enforce it".
Jackson, like Trump a populist who got elected by promising protection from elites and then only enriched himself, went on to flagrantly defy the order of the court, forcibly removing the Cherokee from their Georgian lands to Oklahoma and killing some 8000 of them in the process (while only lamenting the cost). And never faced a single consequence for his actions.

But anybody who imagines that, the disastrous consequences for the country of another Jacksonesque defilement of the court would be as limited in impact as they were in 1829 is deluding themselves.