Then John Roberts was conservative on this issue?
Yes.
Yes because DemonCrat ruled cities are complaining about all the illegal and asylum fakers, border crossers inundating them. Democrat states are getting inundated.This is why The Supreme Court is preserving Trump's 242.
PLUS the USA is still under a Federale Covid emergency. So this justifies keeping title 242. We are the only nation that still requires Covid vaxxxes for visitors and tourists to enter. Note that most states have lifted their state Covid emergency.