This is what I found on wikipedia:
Kahane argued that observance of Torah was the only reason to be Jewish. He saw secular Jews as hypocritical racists:
The biggest racist is the Jew who doesn't see that to be a Jew is something special... Of course, a person born a Jew is a Jew. There’s no doubt about that. But if he doesn’t respect the Torah, he’s not a good Jew. The only reason to be Jewish is the Torah. There’s no other logical reason to be Jewish.[4]
Kahane advocated a Jewish State founded on Halakha. He believed that
democracy and Judaism are two opposite things. One absolutely cannot confuse them. The objective of a democratic state is to allow a person to do exactly as he wishes. The objective of Judaism is to serve God and to make people better. These are two totally opposite conceptions of life.[5]
Kahane advocated basing Israeli law on Halakha, including laws such as banning the sale of pork, outlawing missionary activities in Israel, and a ban on all sexual relations between Jews and non-Jews.[6] Supporters say Kahane was protecting Torah values and the integrity of the Jewish nation, but his detractors consider Kahane's views bigoted. (See: Jewish view of marriage.)
Kahane also believed that a Jewish democracy with non-Jewish citizens was self-contradictory because the non-Jewish citizens might someday become a numerical majority and vote to make the state non-Jewish:
I ask a question that sends Israelis crazy, both on the Left and on the Right. The question is as follows: if the Arabs settle among us and make enough children to become a majority, will Israel continue to be a Jewish state? Do we have to accept that the Arab majority will decide?
... Western democracy has to be ruled out. For me that's cut and dried: there's no question of setting up democracy in Israel, because democracy means equal rights for all, irrespective of racial or religious origins.[7]
Kahane claimed that historically there are no examples of Arab Muslims living peacefully alongside other non-Arab ethnic groups. Thus Kahane proposed the forcible deportation of nearly all Arabs from all lands controlled by the Israeli government. When he served as a Member of the Knesset he proposed a $40,000 compensation plan for the Arabs he was to evict. But he made it clear that Arabs who refused compensation would be expelled by force:
I’d offer financial compensation for those who want to leave the country voluntarily. I would only use force for those who don’t want to leave. I’d go all the way, and they know that... I’m going to hold the bridges on the Jordan river; we’ll hold them for two weeks. We’ll evacuate the Arabs and let Jordan go to the United Nations.[8]
To deter Arab terrorism and to frighten the Arab population into leaving, he advocated Jewish pressure:
I want to scare them and I want to make them realize that, contrary to what they have believed for fifteen years, time is not on their side... And I approve of anybody who commits such acts of violence. Really, I don’t think that we can sit back and watch Arabs throwing rocks at buses whenever they feel like it. They must understand that a bomb thrown at a Jewish bus is going to mean a bomb thrown at an Arab bus.[9]
Kahane proposed a Jewish state within its Biblical borders:
Let me tell you what the minimal borders are, and which the rabbis agree upon, according to the description given in the Bible. The southern boundary goes up to El Arish, which takes in all of northern Sinai, including Yamit. To the east, the frontier runs along the western part of the East Bank of the Jordan river, hence part of what is now Jordan. Eretz Yisrael also includes part of the Lebanon and certain parts of Syria, and part of Iraq, all the way to the Tigris river.[10]
To the objection that this would mean perpetual war, he replied, "There will be a perpetual war. With or without Kahane."