Actually, according to the Israeli press this wall is being built with some remorse and introspection.
The Likud government is distressed by the refugee problems but as a whole the Syrians are a hostile people to Israel and its right to legitimately exist -- avowed enemies mostly.
Jews and Muslims not being the issue Israel is the country with the smallest land mass in the region. If Europe wants to hire the Israeli air force and army to make some space for the refugees to return to in Syria -- make an offer
The IDF has several divisions, including mechanized regiments, right now waiting idle on the Golan Heights border that are about 50 km from Damascus locked and loaded ...