Being a pro-Palestinian Israeli does NOT make them Jews!! There are MANY Israeli hating Arab Israelis who remained when the UN created Israel in 1948 because thery considered it their family home. They may be Israeli citizens, but they are certainly NOT Jews. That's like saying that Obama is an American. He just lives here, but he's an America hating Kenyan!!
The protesters are Jews. Which you’d know if you’d read the linked story in full.
Why is it so important to you that their Jewishness be concealed?