More a natural consequence than a mind-boggling proposition.
You have to understand that the bioenergy has color, as is being discussed on the RS2 forum (Photon model as a quaternion). These colors are indicative of the type of scalar motion present. White is yang, linear; black is yin, angular. When bioenergy goes dark, rather than extending outward into the Universe it folds back upon itself like a circle, binding the energy to the organism. Many martial arts techniques, such as qi gong, misunderstand this. Yes, it gives a person more personal bioenergy, but at the expense of your connection to an infinite supply of universal energy.
Mankind's bioenergy, as a collective, has turned dark--just turn on the television, it is all about sex and violence. This has broken the link between the Realms, which requires a "light bridge," a linear structure, which means that mankind will not be able to link to his cosmic counterpart to create the structure required for ascension. Of course, this separation had a bit of an assist from the LMs, who basically amplified the resonance so the more mankind embraces the dark bioenergy, the wider the gap becomes. It is now to the point where the bridges that once cross the realms for the wizards have now collapsed and those that were recruited to guard them and been released from that responsibility.
So sorry David W... no mass ascension is now possible for the human species. Aliens cannot cross between the Earthly realms to bridge the gap... after all, the are alien to the structure of this Logos.