Well, I for one think this movie has a great concept. Population as we have it, is increasing at an alarming rate no wonder there's the need for adoption of contraceptives, family planning and abortion in worst cases. Perhaps instead of focusing on shrinking humans genetically we could focus on shrinking the waste they produce and perhaps invent a machine or device so to say, that'll enlarge the production rate of the availability of consumables.
Thus, giving everyone in his or her own field a possibility in terms of solution finding to reflect on.