The correct response is immediately to get rid of the fascist pest.
And it isn't just Trump, non-Americans. Like now it's okay for Jeb Bush to say that only Christians should be allowed to immigrate...and Rubio says appalling things, and they all say appalling things. To get nominated for president by their base.
To repeat: yes, this is one of many fascist threat displays. And it's not isolated to Trump.
On Thursday, the House voted to add more requirements to what is already an arduous process. Even worse was Jeb Bush's suggestion that perhaps refugees should have to prove that they're Christian, or Donald Trump saying we might have "no choice" but to shut down mosques. Marco Rubio went one step further, saying "it's about closing down any place" where "radicals are being inspired." (Succinct Huffington)