Ohayon is the sponsor of a law that would forbid use of Nazi symbols, or calling someone a Nazi. The law was approved for a Knesset vote by the Ministerial Law Committee in January. The use of "Nazi" as an epithet is not uncommon in demonstrations by hareidim, and is mostly directed at police.
However, leftists are also very fond of comparing nationalists to Nazis. Some Arabs in the Palestinian Authority openly resort to Nazi imagery against Israel.