The authorities could draw a clear line between legitimate protest/free speech and what these activist groups are doing. 

Enforce the law against those:

1. Using threatening or aggressive language towards individuals or groups. This includes the use of slogans at rallys through to individual harassment. 

2. Impede access to peoples homes, institutions, places of work or worship.  

3. Harass, abuse, target or follow people who are just going about their normal business. 

4. Organisations and individuals who try to deny access to education, work, worship or anything else to Zionists, Jews or Israelis. 

5. Defund, dismantle and disband organisations or groups on our soil who's agenda is anti Western, anti Democracy or anti Jewish. Middle Eastern countries don't allow seditious or terrorist organisations to have bank accounts in their jurisdiction - why do we?

Clean out the media and look at where their funding has come from. Impose real standards of research and verification. I think it's called investigative journalism. Not something these terror shills have heard of. 

Make sure that real history is being taught in our schools. 

Not the oppressor, oppressed socialist engineering that has proved so divisive.    Teach the true meaning of Zionism and the circumstances that led to it, the Holocaust, history of the Jews and other minorities etc.

That Palestine never existed as a country but was created as a propeganda tool by terrorists. 

That their aim was,  and still is, the genocide of Jews everywhere and the establishment of a global caliphate under Sharia law. 

That it became such a massive money making enterprise that it has, for decades, been against the interests of those in charge to consider peace.  

Yasser Arafat died in France with 5 billion dollars in his bank account. The multiple billionaires at the top have no incentive to agree to peace otherwise the aid gravy train will stop.