"A State infinitely worse than that which the most inflamed Zealot, the most violent Republican or Enthusiast even pretended to dread before the Rebellion commenced"

This quote by Charles Inglis is referring to the state of the American colonies during the American Revolution. Inglis is recommending that the state of the colonies is far even worse than what anybody had actually prepared for prior to the disobedience began. He is implying that the violence and damage caused by the rebellion has triggered a good deal of suffering and hardship for individuals of the nests. He is also recommending that the zealots and enthusiasts who had predicted the worst prior to the rebellion had actually not been able to precisely forecast the degree of the suffering and damage that would happen. Inglis is alerting that the effects of the rebellion have actually been far even worse than anybody had actually expected and that individuals of the nests are now residing in a state of terrific suffering and hardship.