I think you are trying too hard to conflate the colonial/genocidal mindset with monotheism when the evidence doesn’t really support it. Was Ancient Rome not colonial and genocidal? Greece? Egypt? They also had slaves. They conquered everyone they could. The exterminated whole swaths of peoples. They didn’t need monotheism to do that. You could argue that the legacy of those polytheistic societies (specifically Egypt for the ancient Jews, Rome for Christians) laid the groundwork for the same genocidal/colonial mindset. But the main point is that the colonial and genocidal mindset is easier to understand from a class/material analysis than one tied to any specific theology. The monotheist theologies were used as a tool to organize and mobilize populations because that was the easiest tool to grab and it was couched in a language that the populations already spoke, but polytheists and other non-monotheists are just as capable of using their theological tools to do the same. For a more modern example, see for example the relationship between Hindu and Buddhist sides over Sri Lanka. Neither are abrahamic monotheisms, yet the colonial and genocidal tendency and forces are still at work.