Palestinian flags would be allowed, however, the Forward reported. It was unclear if this was a tacit acknowledgment of Palestinians not having a true state. Dyke March, said organizers had decided to ban 'nationalist symbols,' including flags and banners that represent 'nations that have specific oppressive tendencies.' Yael Horowitz, a Jewish organizer of the D.C. A Washington gay pride parade is banning participants from brandishing Israeli flags, Israeli pride flags, or any 'pro-Israel paraphernalia' during its event on Friday.