If these extremists aren’t stopped, the end result will be that Israel will be put into a very awkward situation of having to explain to its supporters, not to mention hostile “neutrals”, why they are engaging in religious persecution in violation of international law
Seriously? Europe would be more than happy to get rid of the “Ultra-Orthodox”, which they see as a cross of Muslim extremists & Settlers (See: Beitar, Kiryat Sefer and Ramot). The Charaidim have lost the battle for the minds of the Yeshivish Ba’al Ha’Batim in America. The Chassidim (Satmar) will not be able to help in Washington, and even if they could, they will not (They care more about the continuation of funding).
Help from outside is highly unlikely.