SOME PEOPLE WONDER HOW THERE CAN BE AN ALT RIGHT THAT IS PRO NAZI AND PRO ISRAEL

We're talking about that Breitbart/alt right phenomenon here.

How can you be pro-Israel and pro-Nazi/white supremacist at the same time?

There is no problem here.

Because the Nazis and the Zionists collaborated before and during WW2. In fact it is entirely possible that someone like the Rothschilds created the Nazis to scare European Jews who were at first sceptical of Israel to Israel.