Religious fundamentalism has been prevalent in Israeli policies (and politics) for decades, disproportionally to the percentages that the religious parties are scoring in elections.
This is true as part of the original deal ben Gurion signed with the religious parties at the time of the original pre-Israel Yishuv. ben Gurion, wanted to be inclusive of all Jews in the formation of the State in order to ensure the state would be a haven for all Jews, religious or not. As a result, he allowed the religious a certain degree of control over social policy. The most blatant example is the current law prohibiting civil marriage and refusing ordainment of rabbis that are not up to the ultra-religious standards. This control is perpetuated by the fact that no israeli government has won a majority and thus have had to court the religious parties in order to form governments.
The point of all this is that while Israel still has her domestic political problems, the religious have far less influence of security policy than you would have the 2+2 population believe, and they do not preclude any security measures Israel has taken in order to protect her citizens from the Arab threat that extends from Iraq to Lebanon to Egypt, and that includes building the most powerful military in the Middle East. Even then, only the liberal religious, not the ultra-religious, have any positions in government.
Oh and one more thing:
Some guy's opinion of Shahak and others