would be beneficial in treatment. I have an autistic granddaughter who wasn't identified as autistic until third or fourth grade, and I have read that the younger an autist is diagnosed as one, the better chance there is of socializing them.
This is in no way to compare autistic individuals to psychopaths - my granddaughter's brain simply can't handle the overbearing, random sensory signals present in our modern-day civilization, and she is largely homebound as a result. Maybe an earlier diagnosis would have allowed for therapy to help her adjust to today's ever present noise. And maybe finding children with psychopathic tendencies at the earliest possible age would permit treatment(s) to help them socialize more effectively.
NOTE: I don't think decreasing the amount of psychopathy in our society is necessarily going to put all that big a dent in the MAGA phenomenon. Most of these people are just ignorant or incapable of logical thinking, the latter or which is another societal problem altogether. I decided a long time ago that there are some people for whom the Age of Enlightenment simply never happened.