Whilst i do not think that we can possibly win the public over and can possibly do damage trying to, on balance MBM have done a positive thing with their campaign - you cannot be seen to do nowt!
The best way to fight it is to show how:- 1. It will raise less tax 2. It will damage many businesses as well as directly damaging a succesful UK marine industry. 3. It will damage many coastal areas. Imagine in effect the Windermere effect repeated in many coastal areas - I know its different but they argued that it would not damage the economy because it would attract new visitors ... 4. Its not even logical as we make no attempt to give parity with road fuel taxation. 5. Its almost impossible to police etc