‘The Presidential oath, which the framers of the Fourteenth Amendment surely knew, requires the President to swear to ‘preserve, protect and defend’ the Constitution — not to ‘support’ the Constitution,’ read a filing from the former president’s attorneys
They also like using history to support their decisions. If it can be shown that the presidential oath is intended to go beyond "support" I would see the court being persuaded that "support" is implied by "protect, preserve, and defend". It depends on whether the textualists or the pseudo-historians win the day.
The five conservative "justices" are conservatives first and "justices" second. They will always rule however the standard, bigoted, Fox-News-loving white nationalist will rule. They do this by using wordplay and bad-faith semantics.
Every word uttered by a conservative is either deception or manipulation. Every word.