Let's start at the beginning:
a. Every nation is entitled to a home - a land where the nation is allowed to live freely and peacefully.
b. Every nation has the right to decide who will and will not be allowed to enter its home; that stems from the definition of a home. Just like every person is allowed to say "I don't want you in my home, get out" so does every nation in its home land.
c. The home of the Israeli nation is the land of Israel.
d. Therefore, the Israeli nation has the right to decide who will and will not be allowed to enter the land of Israel.
e. Specifically, Israel has the right to decide that only Jews are allowed to enter; This is not racism, this is the only way to keep Israel the homeland of the Jewish people.
f. For some (political) reasons, Israel's parliament decided to allow, not only Jews, but also people who are married to Jews, or people that one of their grandmothers/grandfathers is Jewish; some of those people are Neo-Nazis. This is the cause of the current uprise of Neo-Nazism in Israel.
g. Knowing the cause gives us the solution - change the immigration laws, and allow only real Jews to enter. Non-Jews can be very good people, but Israel this is not their home - they have to find their own home.
h. The Neo-Nazis currently held in arrest should be judged, and if found guilty, expelled to their land of origin. Israel is not their home - they have no moral right to live in the home of the Jewish people, while they spread hatred to Jews.