How do you outlaw a boycott? It's not an act, it's a non-act. An absence of a purchase. How do you distinguish boycott from just not buying something you don't want or need like any other item. Are we going to be required to put so much of our purchases toward Isreal now?
the state wants to lock you up, figures out you don't drink coca cola, You're on trial for not buying Coca-Cola, or Nestle, or never tried Sabras hummus... straight to jail.
You outlaw a boycott by using violence against those who promote the boycott. It's not even anything new. Many states have already been doing this. Not to mention recent disappearances of anti-genocide activists.
Violence in service of hegemony is almost the entire purpose of the state.