No person who is or should be licensed under chs. 600 to 646, no employee or agent of any such person, no person whose primary interest is as a competitor of a person licensed under chs. 600to 646, and no one acting on behalf of any of the foregoing persons, may commit or enter into any agreement to participate in any act of boycott, coercion or intimidation tending to unreasonable restraint of the business of insurance or to monopoly in that business.