(The Hebrew phrase ger toshav, by the way, literally means something like “a wanderer who has settled”

In the verses that Fischer quotes (Deuteronomy 24:19-22), instructing the Israelites to leave some unharvested crops for “strangers, orphans, and widows,” the word ger appears without the modifier toshav — and similarly in Deut. 10:18, which Warren mentions.
Thus, while the ger toshav (i.e., a foreign pagan who had significantly assimilated but had not converted) enjoyed a legal status close to that of a Jewish Israelite, a plain ol’ ger (implying minimal assimilation) had an inferior status but was nonetheless a human being to be treated with dignity and charity.

would mean making sure that immigrants to the United States affirm and believe in the superiority of the Judeo-Christian system of values and truth claims over alternative value systems such as sharia law.

Citizenship requires allegiance to the constitution, immigration does not. Even then, it is unenforceable.

Immigration is a privilege, not a right, and our policy should be to admit to our shores only those with a commitment to a full assimilation to American culture, adopting our faith, our heroes, and our history. Someone with a Muslim background who wants to become an American had best be prepared to drop his Islam and his Qur’an at Ellis Island.

As this:

Immigration is a privilege, not a right, and our policy should be to admit to our shores only those with a commitment to a full assimilation to American culture, adopting our faith, our heroes, and our history. Someone with a Roman Catholic background who wants to become an American had best be prepared to drop his Catholicism and his Popery at our shores.

And you would be back 160 years in the thinking of the Know Nothings. On the left coast you could put the Chinese and their traditions into those slots. But not one of my ancestors would have come to America had the Know Nothings held sway.
I think Bryan Fischer quite well fits into the mould of a Know Nothing.
…

(The Hebrew phrase ger toshav, by the way, literally means something like “a wanderer who has settled”

In the verses that Fischer quotes (Deuteronomy 24:19-22), instructing the Israelites to leave some unharvested crops for “strangers, orphans, and widows,” the word ger appears without the modifier toshav — and similarly in Deut. 10:18, which Warren mentions.
Thus, while the ger toshav (i.e., a foreign pagan who had significantly assimilated but had not converted) enjoyed a legal status close to that of a Jewish Israelite, a plain ol’ ger (implying minimal assimilation) had an inferior status but was nonetheless a human being to be treated with dignity and charity.

would mean making sure that immigrants to the United States affirm and believe in the superiority of the Judeo-Christian system of values and truth claims over alternative value systems such as sharia law.

Citizenship requires allegiance to the constitution, immigration does not. Even then, it is unenforceable.