Are you kidding me, like your ancestors didn't kill tens of thousands of native american Indians to claim land as their own. Fuck off!
This is true; both people in Europe and in settler colonial societies often forget that much of their progress was gained at the expense of exploiting others for their work, resources, land and lives. But we can't fall into the fallacy of assuming that because these nations did it, that is somehow acceptable and others should do it too; it was always wrong.