He said that it is not practical now, but he would like to limit the right to live in Israel to people who are Jewish and also to people who follow the seven Noahide laws, https://en.wikipedia.org/wiki/Seven_Laws_of_Noah
According to Wikipedia, the seven Noahide laws are the following:
The seven Noahide laws as traditionally enumerated are:
Do not deny God.
Do not blaspheme God.
Do not murder.
Do not engage in illicit sexual relations.
Do not steal.
Do not eat of a live animal.
Establish courts/legal system to ensure obedience to the law.
Would that Israel could enforce this type of limitation.
A lot of Jews would have to leave.