Kavanaugh ruled that Trump's EO wasn't unconstitutional, just contrary to federal law, and Congress could change the law there if they wanted. So, this makes it only 5-4 upholding the 14th amendment.
Which is gods-damned crazy. We are that close to overturning major civil rights.
This would also overturn our ability to arrest or deport non-citizen, no? If the argument is that they are not under the jurisdiction of the US government, we cannot legally arrest or prosecute them?
This would create chaos. Not to mention the tens of millions of citizens retroactively turned into stateless people!