Again, rights usually aren't lost via revolution, but that is the way they are usually regained.
No kidding. Until those with the power to ignore your rights recognize and respect those rights, you don't really have them in any meaningful way because you can't express them. Sometimes you have to kick them in the teeth to make them recognize your rights. I could say "I have the right to shoot every third person who drives past my house", but there are those who would deny me that right, and have the power to do so, so my expression of that right is meaningless
Okay, so, until England recognized the colonies "right" to form a nation, they had no such right.
Legally? No Morally? Yes
Is the distinction sinking in yet?
Very few revolutions are 'legally' right because they are revolutions against the current legally system. They may be morally right based on local definitions of morality