You're so sure that I won't succeed... [But he's thinking that maybe he needs to take advantage of being underestimated, so he isn't taken as a serious threat too early on.]

Ok, I can buy that most women might be into the idea, but some probably wouldn't be. [...Maybe? He's not so sure he likes those odds, to be honest.] Especially when it comes to populating the world with hybrids. Would they all really be willing to let humanity as they know it change so dramatically?