Behavior is most strongly determined by the environment, especially during childhood. Belief that genetics is in anyway a primary cause for overall behavior patterns is greatly exaggerated. There’s a sick deterrence to questioning how people raise their children, how the state educates them, and the general competence of the world the previous generations built for them.
Society would rather condemn the dysfunctional individuals that pop up because of its own incompetent systems calling them evil or hopeless instead of acknowledging the source of the problem, treating the dysfunctional or dangerous individuals as patients, and focus real resources on improving the lives of the poor. Not all of the misfits can be “cured” but the great majority can be if they’re given what they need. But it’s not about getting people what they need, it’s about conditioning them to fit within the system.
The myth that people who have horrible lives just aren’t trying hard enough, or are somehow inherently forever evil is a disgusting attitude to have. We are collectively responsible for their unhealth and to stick them into a concrete box is nothing less than inhumane.
It’s just another way the elite try to arbitrarily manipulate their populations into what they think is best. It’s time we accept responsibility for the sickness we create by supporting inherently corrupt systems. That’s the only thing that is inherently dysfunctional.
. . . uhhh, I kind of got carried away. To answer your question, yeah people can improve things that they are predisposed to be bad at. If it’s something simple like the ability to calculate many numbers at once, it’s unlikely that they could ever reach a high-level of skill compared to those who are predisposed to be skilled in calculations. But in complex tasks many skills come into play and it’s very possible that a person lacking in some might still achieve significance even in a field where those lacking skills are most valued. You have to work with what you have, but there are so many ways to make things work if the drive is there.