Some of the far-right like Israel for stupid reasons:

• It's an example of the sort of ethno-nationalist supremacy they want to implement at home.
• Some in the far-right have embraced this idea that various ethnic groups should not mix, but they can have their own countries/regions ("ethnopluralism").
• They want to get rid of Jews from their home countries, so they like the idea of them leaving and going to Israel.
• They hate Muslims even more than Jews.