What was so unusual about the Puritan practice of expelling from their colony those
who would not worship as they did?

i want to say death; parole, probation, and fines are still being used all the time.

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”