The motivation to this question is a news about Protesters Take On Settlements In ‘Biggest Ever Jewish-Led Protest’ Of AIPAC. A comment here, says:
"Group of foolish people ... Most of them don't even know the history of Israel and were mostly Muslim Jews ...".
I dont know who the Protesters are. Before this, I've also seen muslim Protesters that Protest against Iran, Arabs that Protest against Saudi, and so on.
This is like one say "real madrid fans were among barcelona fans and did that .
How can one realize a protest from a fake protest when one is not at the place?