Which idea does this sentence best help to develop

Question

but when a long train of abuses and usurpations pursuing invariably the same object envinces a design to reduce them under absolute despotism it is their right it is their duty to throw off such government
it is self evident that people have inalienable rights
te colonists should seperate from great britain
governments power comes from the people
british citizens have also mistreated the colonists

Answer 1

The idea that "the colonists should separate from Great Britain" is best developed by this sentence.