Unironically, though, yeah, dramatically increase immigration. Immigrants are less likely to commit crimes, less likely to not work, far less likely to draw on social services, and more likely to start businesses. Plus, they can help correct demographic declines in a sustainable manner.
Never believe that anti-Semites neotankies are completely unaware of the absurdity of their replies. They know that their remarks are frivolous, open to challenge.
But they are amusing themselves, for it is their adversary who is obliged to use words responsibly, since he believes in words. The anti-Semites neotankies have the right to play. They even like to play with discourse for, by giving ridiculous reasons, they discredit the seriousness of their interlocutors.
They delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert.