It's great that you keep posting this even though it means absolutely nothing. Really? A country can do whatever it wants? How about tattooing a boarding card on someone's forehead? Chopping off a hand?
Lol, way to take something to a ridiculous extreme to try to prove a flawed argument. A country can refuse entry to anyone for any reason, and it's perfectly within their rights to do so. You can try to argue that if you want, and activist judges can try their best to thwart national security, but you'd be equally wrong.
Terrorists communicate online via websites and social media - if the government of a country has the means to access that information and flag security risks, it's their obligation to follow up on that Intel.
It's like those that tried to argue that the TSA was a violation of the 4th amendment protection against illegal search & seizure. The reason they lost that argument is you don't HAVE to fly. If you don't want to submit yourself to x-ray machines and pat downs, drive instead. Walk. Take a train. Hitchhike. Whatever. But if you want to fly, you will go through TSA and you will be subject to inspection.
Equally so, if this were to pass and become the rules, people don't HAVE to enter the US and be subjected to it. They can go somewhere else for vacation or to live.
And on a side note, earlier someone was talking about a change like this not having any support or something along those lines. There was an election in 2016 and overwhelmingly the American people nominated the candidate who spoke out about the need for radical change to the broken immigration system. President Trump made it VERY clear what he wanted to do with extreme vetting, and social media history is just a part of it. Simple as.
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