How does paine's sign-off help his case against the English?

Paine's sign-off strengthens his case against the English by emphasizing his call for unity and resilience among the colonies, appealing to their shared struggles and aspirations for independence. By adopting a tone of urgency and moral clarity, he reinforces the idea that breaking away from English rule is not only justified but necessary for the colonies' future. His concluding remarks aim to inspire action and foster a sense of collective purpose, making his argument more compelling and relatable to his audience.