Being biased( why the mind cannot most of the time be objective?)

This research study design will be based on why we are mostly biased in our daily life.

-i will be looking for correlation between one own interest and his view on any subject matter.
-I will be using mostly case studie1( why minorities who always blame white for Racism are exhibiting racism among themselve(black vs spanish, or black vs Asian) or to some extent xenophobia( black born American vs black asians or Black from africa) or (puerto ricans vs mexicans vs dominicans) or (chinese vs japanese vs koreans) (Possible answer: is it because each group see themselve better than the other?)
– case study 2 . If 99% of black vote for a black canditate,people assume there is no racism involved but when 99% of white vote for a white canditate we see racism.( is it because of slavery?)
-case study 3. Why most men see women as inferior(is it because they want to dominate?)
-My independent variable in this research could be race,gender,ect and The dependent variables will be how our own interest guide us.

– I believe that only few data point in this sample will act objectively with 95 percent confidence interval.we are mostly biased because we looking after ourself first then the rest comes.In the book the jungle,the strong man didnt want to join the union since he could easily find a job,so why pay money for membership but when he became sick and his interest is at stake,things changed.