Question

Which main point do you anticipate Thoreau will make in his essay?

Answer 1

Second one: Citizens should not....unethical things.

Answer 2

The main point would be: Citizens should not support a government that does unethical things.
He viewed that citizens held the power to undermine government actions. He held this viewed because each members of the government are only the representatives whose duty is to fulfill the will of the majority of the people.