Is Dr. Helen Fisher correct that antidepressants like Prozac, Paxil, and Zoloft, not only lower sex drive, but actually inhibit both the ability to fall in love and to stay in love? Is this being ignored because it is misperceived as being, at worst, a minor side effect of little practical impact, or is there a more sinister manipulation to support the widespread and increasing use of these substances?

She is absolutely correct with this observation. It has come up in many settings but is not being given serious attention, and for the reasons you state. It is viewed as speculation only and by people who are presumed to have a negative perspective to begin with, and are often in a mode where they will complain about almost any aspect of their lives because they are seeing things through a dark lens. This makes it hard to sort out what is an unresolved or benefiting symptom of their presumed illness, from what might be a consequence of the drug ingestion to suppress unwanted feelings and perspectives. But having given the doctors their due, we can also tell you that side effects are welcomed and encouraged to persist through mind manipulation of researchers to ignore evidence, and by regulators to dismiss many questions and concerns because of the lack of corroboration, and will correspondingly be very slow to act. The entire system is geared towards inertia. The drug makers do not want to blow the whistle on themselves unduly, and the government officials are heavily mind controlled, so this works against the dark doings and adverse consequences seeing the light of day until the hue and cry amounts to a level demanding action. That is yet to happen with respect to this issue. It is most unfortunate that these agents are so heavily prescribed, given that their effects are so marginal. We would say it is a clear case of the downside outweighing the positive.