Answer:
By reminding them that King George refuses to respond to their requests
Step-by-step explanation:
In the excerpt, Thomas Pain is pointing out at the fact that American leaders have already requested, peacefully, from King George, the approval of measures such as the lowering of taxes, and the representation of the colonies in the British Parliament.
Because these peaceful requests had failed, Paine is also explaning that they are not only useless, but also counterproductive.