Would you agree Iraq is the heartland of assyrians?

This is not supposed to be controversial or hateful, just curious, but would other assyrians consider iraq to be assyrians heartland? I am an assyrian whose family is from iraq (both sides of my family came from iraqi assyrian villages) and have grown up with assyrians who are all from Iraq as well, and everyone (from Iraq) considers iraq to be assyrian land/origin. I know that there are assyrians who come from places outside of iraq, (turkey,syria,iran) so I wanna know other peoples opinions/perspective on this. Historically, the assyrian empire originated within iraq and they predominantly lived all over iraq even the south as many sumerian cities in the south were controlled and lived in by assyrians, there are/were also many assyrian villages in baghdad, habbaniyah and even basra (although currently there are probably no villages in basra) assyrian/mesopotamian artifacts are found all over Iraq and Iraq even recognises Mesopotamian history/ancestry as theirs but turkey/iran/syria do not state that assyrian/mesopotamian history is theirs . I have been told that many of the assyrians from turkey/iran/syria had migrated there due to the Islamic conquest and Arab invasion of Mesopotamia during the 5-7th century, as previously, assyria had only extended slightly into those countries after assyrian empire conquest, and the only assyrians that did live there had lived near/right at the border, before moving more north during the Islamic comquest. Again I am not trying to be controversial/start hate but I just want to know what other people consider of this, as this is what I have been told growing up by my family/other assyrians that i know.