Leftists aren't shy about their agenda. They'll create mainstream entertainment that just straight up presents blood thirsty, human sacrificing savages as the heroes and the Europeans who vanquished them as the villains. The problem is that many conservatives are still too scared to respond to this sort of propaganda with any force. Many of them still won't come out and proclaim, rightly, that the European colonizers were heroic and the colonization of North and South America was a virtuous and noble enterprise. Instead they'll see this dumb cartoon, shake their head disapprovingly and say, "Well actually this representation lacks proper nuance blah blah blah..."