Marxist liberals call what Kevin MacDonald, J. Philippe Rushton, and Richard Lynn do "pseudoscience," but it seems they are the ones actively engaged in churning out pseudoscientific texts.
It seems there is somewhat of a major gap in the reviews I have seen of this particular text, because a key question goes entirely (and conveniently) unacknowledged: Could it not be that White people experience anxiety while in the presence of members of another race because of the attitudes and behaviour they have come to expect from them? This seems yet another attempt at blaming Whites for the failure of the multicultural experiment.
A reasonable person would blame the politicians who forced this experiment on a society that did not need it, did not ask for it, and never wanted it. It is they who are bad for our health, not our evolved psychological mechanisms of self-protection.
Perhaps is the aforementioned politicians who need internment in the psychiatric ward, or training on how to serve their country.