Ah, those guys. They like to protest at a funeral parlor down the street from me that regularly handles soldiers' funerals from the local Army post.
Best I can tell, they think God hates anyone that doesn't explicitly agree with their pastor, Fred Phelps (Homosexuals, Jews, the U.S. military, Sweden, etc.). Their problem with the Jewish people is the classic "THE JEWS KILLED JESUS!" nonsense.
Also, I've heard ol' Fred makes a big chunk of his financial support from suing people that assault him and his followers, so it's best to keep those emotions under control.
By the way,
reason for protesting Twitter: the people who run Twitter
dont use their position & voice to warn a generation of rebels of the consequences of their rebellion.