This is fantastic! I was planning on doing this myself, but I didn't know there were others! The halakhah states that two witnesses are enough for a marriage. Nowhere does the halakhah state that a rabbi is necessary, and certainly not a bureaucrat! For the Israeli government to require Rabbinate involvement is a violation of bal tosif, the commandment in the Torah not to add onto the Torah. The Torah says that two witnesses are enough, and the Rabbinate is heretically adding onto the Torah. They are kofer ba-torah.
Clashes between IDF and protesters in Bethlehem and East Jerusalem (Reuters)
from the article: Without the rabbinate, I'll thee wed