Europeans colonized Palestine in the late 19th and early 20th century against the wishes of the indigenous people.  They bought up land from absentee landlords and evicted people who had lived on the land for many generations.  They even bought land from people who only claimed to own it, and forcibly displaced the real owners.  

When Israel was created, against the wishes of the majority of the indigenous population, Israel confiscated the property of all the indigenous people who were displaced by the war. 

Israel has confiscated all the arable lands of the Negev, and forced the real iowners onto reservations.   Israel has built hundreds of illegal settlements in the occupied West Bank, on land seized by force from Jordan. 

Making it illegal to protest the actions of European invaders and colonizers is an insult and a threat to indigenous people everywhere.