It's deference to the executive branch that seems to be what the majority is looking at. Both Gorsuch & Kavanaugh treated citizenship inquiries as unremarkable in their questions during the oral arguments.
This. Frankly I tend to agree. I've never thought it was a good argument here or in the immigration case to make the argument that "well yes any other President could do this but Trump is uniquely so bad that otherwise legitimate presidential powers can never, ever, ever be exercised by him but only by him because him am bad!"
