No neurotic harbors thoughts of suicide which are not murderous impulses against others redirected upon himself.
The very emphasis of the commandment: Thou shalt not kill, makes it certain that we are descended from an endlessly long chain of generations of murderers, whose love of murder was in their blood as it is perhaps also in ours.
Religion is an illusion and it derives its strength from the fact that it falls in with our instinctual desires.