The first paragraph of the Declaration of Independence promotes and endorses secession.
Only in highly extreme circumstances
It doesn't promote, it attempts to provide a rationale explanation of why the colonies decided to take this course.
When in the course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another and to assume among the powers of the earth,
the separate and equal station to which the Laws of Nature and of Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation.
Seems pretty obvious.
15% of people can't read
It doesn't promote, it attempts to provide a rationale explanation of why the colonies decided to take this course. This was more to help convince the other lands to stay out than anything else - or at least that's what I learned in US Hist.
In a government school I'm willing to bet.
Actually, you'd be incorrect. This was at a small private school.
Yeah, and the list of grievances in the document resonate in today's world.