I think it's both reasonable and possible - likely, even - that an immature person will make immature decisions, just as I think it's both reasonable and possible - likely, even - that an aggressive person will make aggressive calculations as to who/what they can successfully target their aggressions.
I also don't think it's at all unreasonable to define predatory behavior as one type of aggression, just as I don't find it unreasonable to view an intrinsic willingness to cede one's own power as one form of immaturity, or even weakness.
However, I also don't think it's unreasonable to recognize that weakness and aggression can coexist in the same person, and that one trait can be used to position one's self to better utilize the other.
In other words, people be fucked up creatures, and seldom more predictably than when sex becomes a calculated strategy rather than an innate urge.
I see that happening here, and yeah, fuck 'em both for that.