You need statistics to know that people are predisposed to biases? Or were you looking for the statistics on how frequently people are biased? Because very few people are objective all of the time or subjective all of the time. Most fall somewhere in the middle and it all depends on how strongly they "feel" about any particular thing.
Humans are deeply predisposed to cognitive biases because the brain uses them as automatic, mental shortcuts for survival, efficiency, and information processing. These implicit biases, ranging from in-group favoritism to pattern recognition, are ingrained through evolution to protect us and speed up decision-making, though they often lead to distorted perceptions.
Key Aspects of Human Bias Predisposition:
- Evolutionary Roots: Humans are predisposed to "in-group/out-group" biases, which originated from the need to favor kin for survival. Similarly, a "hypersensitivity" to detecting agency (assuming intent or danger) was advantageous, causing people to see patterns even where none exist.
- Brain Efficiency: The human brain is hard-wired to conserve energy, relying on automatic, fast-thinking processes that often bypass objective, slow analysis.
- Environmental & Personal Factors: While some predispositions are innate, many biases are developed through life experiences, cultural upbringing, and personal history, according to PMC - NIH and Dima Ghawi.
- Ubiquitous Nature: Nearly everyone possesses some form of bias, such as, for instance, nearly 90% of people show bias on the Gender Social Norms Index, World Bank Blogs reports.
Managing Built-in Biases:
While the predisposition to bias is natural, it can be mitigated. Strategies include acknowledging one's own biases, taking implicit association tests, diversifying one's environment, and engaging in active, slower thinking to counteract automatic.
You'd have to answer the question I asked first instead of dodging like you are trying to do.
You seem to have strong opinions which are often times the result of emotion and bias. But without knowing what horse you have in the race, this is the closest I can come to diagnosing you.