Bias is an interesting word and is defined as:
a particular tendency or inclination, esp. one that prevents unprejudiced consideration of a question; prejudice.
So by introducing this word you accuse me of prejudice, prejudice is defined as:
an unfavorable opinion or feeling formed beforehand or without knowledge, thought, or reason.
My opinion, has not been formed beforehand or without knowledge, thought, or reason. It is based on all the above plus personal experience.
Your bias is that anyone who disagrees with you is wrong and stupid.