It sounds like you believe people can behave more in line with the Rational Human used to model older economic theories. I'm not so sure confirmation, affinity, or proximity biases can be held down. What we need is a system that is either immune to these biases, or is designed to thwart them.
My opinion: individual's actions and beliefs do not put a dent in the tsunami of bias that swamps our brains. We need systemic thinking (e.g. science has a decent structure with double blind studies).
My opinion: individual's actions and beliefs do not put a dent in the tsunami of bias that swamps our brains. We need systemic thinking (e.g. science has a decent structure with double blind studies).