"We all know that any emotional bias -- irrespective of truth..." — H.P. Lovecraft quote meaning

We all know that any emotional bias -- irrespective of truth or falsity -- can be implanted by suggestion in the emotions of the young, hence the inherited traditions of an orthodox community are absolutely without evidential value.... If religion were true, its followers would not try to bludgeon their young into an artificial conformity; but would merely insist on their unbending quest for truth, irrespective of artificial backgrounds or practical consequences. With such an honest and inflexible openness to evidence, they could not fail to receive any real truth which might be manifesting itself around them. The fact that religionists do not follow this honourable course, but cheat at their game by invoking juvenile quasi-hypnosis, is enough to destroy their pretensions in my eyes even if their absurdity were not manifest in every other direction.