Viewpoint discrimination in synagogue protests (Updated)

I have written the past couple years about ongoing anti-Israel (drifting many descending into blatant anti-Semitic) protests outside an Ann Arbor synagogue. Several congregation members brought a tort claim against the protesters. The claim (rightfully) failed in the Sixth Circuit. Ronald Lewin, a veteran religious-liberty litigator, sought cert, arguing that protest (at least the sort of obnoxious protests at issue here) should be prohibited outside houses of worship, as obnoxious protests are prohibited outside reproductive-health facilities. SCOTUS denied cert.

But then we have this story-- a gay Orthodox Jew has protested outside a Florida Orthodox shul every Shabbat and holy day, after the rabbi asked him and husband not to return because homosexuality violates Jewish law. I cannot identify a more appropriate place for this protest, showing the problem with Lewin's categorical bar. And if this protest is ok, we encounter obvious and egregious content (if not viewpoint) discrimination.

Update: An Ann Arbor resident suggests I understated the anti-Semitic nature of some of the protesters and signs (such as "Jewish power corrupts"), so I amended my language accordingly.