One of the go-to books that I look at is called The Beginning and End of Rape by Sarah Deer. There are lots of indigenous female academics who have written these kinds of books, which talk about the direct connection between colonization and the rape and abuse of women's bodies, and the idea that indigenous women, prior to colonization, had far more agency over their bodies than female European settlers who came here. The intention was to set indigenous women in their place by raping them. There's also the connection between the rape of indigenous women and of the land, as if both are there for the settlers to take.
I really encourage you to have a look at these kinds of books. There's a lot of explanation here about colonization, settler abuse of land and abuse of indigenous women's bodies.