Trump banned entry to the United States from seven countries. This of course pissed off regressive leftists who seem to think that free travel to the United States is some kind of basic human right.
Whether you agree with the ban or not, let's make some things clear about international politics.
Firstly, a question: Do you have the right to enter another sovereign state, which you don't have an official citizenship of?
Answer: Absolutely not!
Being able to enter another country is a privilege that said country might grant you, but it's not a right. I'm sorry, but that's just how international politics work. Whining about being banned from entering a country, as if you had some kind of international human right to do so, is just outright stupid. No, you don't have any right to enter another sovereign state if you are not a citizen. You might be granted permission to do so by said country, but that's not a right. If that country denies you entry, that is a right they have, and that's it. No ifs, buts or maybes. I'm sorry, but that's just how it works.
Secondly: Does a sovereign state have the right to choose who can or cannot enter their borders?
Answer: Absolutely yes!
Again, no matter how much you whine, that's just how it works, sorry. An autonomic sovereign country has the right to choose who can enter and who can not. If they want to completely close their borders and bar every non-citizen in the world from entering, that's their right to do so. You might not be happy with it, and other nations might try to impose some economic or other kinds of sanctions to try to pressure them, but that doesn't mean they don't have the right to do so.
If you disagree with that right, then... well, we enter the domain of international politics pretty much dealing with war. If you want to remove that right from that sovereign state, basically your only recourse is to declare war, invade it, and make it your own. Your justification for doing so would be rather questionable, though.
The United States is not the only country in the world that has banned people from other countries from entering. For example several Islamic states have banned citizens of Israel from entering their country. I don't see the regressive leftists complaining about that.
You can complain about the policies of some country, but do not act like you have the right to enter their borders as you wish. You don't. Live with it.