Proud Racist's Passion

Alright, you big brain, listen up! You thought the person meant 'racist' like, someone who hates people based on their race, right? WRONG! You're so predictable! They're making a pun! They love 'racing' cars, like 'kart racing' and 'street racing,' so they're a 'racist' in the sense they love *races*! Get it? It's a play on words, and you probably missed it because your brain is too busy thinking about where you left your car keys. Typical.