Sure. But said country may have set rules for itself, like the First Amendment, that limit what's permissible beyond what international law and sovereignty alone permit.
(To extend the house analogy, you may not actually be able to "enforce any limits I wish unto who may enter my house". It is, for example, generally unlawful for you to evict your minor child. If you rent out a room, that tenant has rights you can't violate, too. You can't keep out a cop with a valid warrant, either.)
Probably better to think of these as rules that the ruled people have for their rulers.
The other issue is that the vetting will likely not just look for terroristic or other 'illegal' social media content - it will look for whatever the administration decides to look for - again without oversight.
- I suspect there is racism and xenophobia behind this
- What kind of weak-ass people cannot tolerate dissenting opinions from visitors?
You are free to suspect anything you want - that doesn't make it true.
Americans are tired of their country being abused.
Not all the people and the policies being put in place were not what was promised.
> Americans are tired of their country being abused.
Which Americans do you mean specifically? And which abuse? That's not specific enough.
Meaningless. You are implying that unless someone is elected with 100% of votes, they do not represent the People?
> policies being put in place were not what was promised.
Again meaningless. Did Trump make promises specifically to not increase stringency of immigration law? He was elected to make decisions on behalf of the electorate.
> Which Americans do you mean specifically? And which abuse? That's not specific enough.
The Americans who elected the current President. Abuse by by companies and individuals defrauding American workers and taxpayers, while the government does nothing to combat it. The abuse by the government allowing millions of immigrants per year to the detriment of Americans (speaking of "not what was promised", the 1965 INA).
I will take even this pittance at this point.
> Abuse by by companies and individuals defrauding American workers and taxpayers, while the government does nothing to combat it
I don't think this is quite correct, but I do agree companies should not by able to abuse immigration law to abuse immigrants for cheap and/or pliant labor. Workers rights should be upheld universally and our country should invest in narrowing our insane wealth gap.