High kudos for Mr. Greenfield to at last come out and call for this (although anyone who follows his writings would have discerned that he has been leaning towards such a declaration for some time).
It will be interesting to see other members of this forum try to refute him.
While one might find it easy to denigrate Donald Trump's call for an end to muslim immigration, claiming that Trump is a buffoon or ignorant or what-have-you, such arguments don't hold water against Mr. Greenfield, easily the most prominent American voice against islam right now.
Of course, I've been saying as much for years, even before Daniel Greenfield found the public courage to do so.
All muslims in The West -- ALL of them -- must return to dar al-islam.
The only exceptions will be for those willing to convert to either Christianity or Judaism, with both a publicly-recorded declaration accompanied by a physical demonstration (such as the eating of pork on camera).
This is a far more civilized "choice" than islam offers to infidels in dar al-islam.
Here, the choice will be: leave, or convert.
There, the choice is: convert, become a dhimmi, or.... die.
If we are unwilling to do this, it's but a matter of time before The West.... disappears.