Final answer:
The passage justifies the action of overthrowing a government that has become abusive and establishing a new government.
Step-by-step explanation:
The passage from the Declaration of Independence justifies the action of throwing off a government that has become destructive and establishing a new government. It states that when a long train of abuses and usurpations occurs and a government aims to reduce its citizens under absolute despotism, it becomes the right and duty of the people to overthrow such government and provide new guards for their future security. This passage highlights the principle of the people's right to alter or abolish a government that fails to protect their rights.