You're moving the goalposts on the original sin, while I was discussing the issues of today or at least recent past (Iranian revolution was only in 1979, Invasion of Iraq was in 2003, Arab spring in 2011, Taliban rule form 2021).
You can't just wave away decades or even centuries of oppression and intervention in other countries' affairs that changed them forever (that sill happen to this day BTW, and by the same powers), with "whatever mate, it was in the past", as if you broke my phone screen in junior school. No mate, it wasn't just in the past, it's still happening.
Except colonialism today is less about large sailing wooden ships and conquistadors with muskets straight up stealing your shit from your town at gunpoint and shipping abroad along with slaves, but more alphabet agency black-ops and monetary/economic levers to topple your leader and replace him with a friendly puppet one who will willingly and legally sign off your country's resources and your peoples' labor to western corporations as salves, for way below market price. This isn't the original sin anymore, this is its modern version.