If you read K's concurrence, you'll wonder why there is any issue at all. Since, roughly, there isn't one -- there are a very large number of ways this EO can be challenged universally without requiring UIs
Hearing that the executive is less constrained and more able to violate the law should make you emotional, especially when one of the nine highest members of the judiciary are assessing it.
You don't want your country being run by the craziest common denominator amongst the judiciary. This is about as far away from democracy as you can imagine, and allowed to run rampent, would lead to massive a democractic backfire.
Imagine the political upheval of a democrat president being unable to act because of trump-apointee crazys in florida. The court has just prevented a decade of mass protests and political insability
Yes, we'd much prefer a dictator attempting to unilaterally invalidate constitutional amendments...
> The court has just prevented a decade of mass protests and political insability
Yes, they have - by further emboldening the executive ala Unitary Executive theory. This isn't a good thing - we are all witnessing one of many steps in the US' descent into fascism.