People will look for anything to blame someone else they don't like, rather than admit that they don't like them. For example:
"Oh, Fnord, you believe that only because of your ________."
Fill in the blank with any one or more of the following:
Ethnicity, religion, political affiliation, disability, sex, gender, intelligence, citizenship status, age, profession, education, criminal record, victimhood, past trauma, hobbies, interests, skills, talents, addiction, illness, disorder, skin color, homelessness, investments, social status, property, wealth, poverty, bankruptcy, appearance, marital status, baldness ...