Can someone summarize the British plan please

John Burgoyne, poet, playwright and British general, submits an ill-fated plan to the British government to isolate New England from the other colonies on January 28, 1777.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.