What can I choose to discriminate against that won't make me feel like a shitty person but also give me lots of money? 

"No ghosts allowed."

"No contacts-wearers allowed." 

"No left-handed people named Leopoldo allowed."

"No one who owns a liger allowed."

"No dirty pirates allowed." 

Poor me. I'm being discriminated against for no one listening to my beliefs. Now someone go start a GoFund me. Mama needs to pay off her student loans. Sounds like if I'm REALLY hateful it's possible I could make enough to buy an island.