(the latter is more important because even slaves can outbreed their masters)
Who do you mean by slaves?
You don't need to rule to take over a place. Mere presence and mass reproduction is enough even if you are slaves. Just look at the Caribbeans and why are these blacks even there and why are they actually the majority (!) of many islands and WTH are Native Americans almost nowhere to be found there.
Such freaking hypocrisy and cognitive dissonance from Tabby again, I just get so annoyed by it! Who took the black people to the Caribbeans, Tabby?!!! It were white people who took them to the Americas, so don't try to dog whistle, you're just fooling yourself, imbecile that you are!
And the reason why Native Americans are almost extinct is because Spanish colonizers and other white Europeans brought diseases with them, and not only that, they also killed the Native Americans. It's actually a genocide what has happened to the Native Americans.
Edited 6/21/2017 03:22:44