Fuck your trauma.
Yes, fuck your trauma. My sympathy for your suffering, whether that suffering was real or imaginary, ended when you demanded I change my life to avoid bringing up your bad memories. You don’t seem to have figured this out, but there is no “I must never be reminded of a negative experience” expectation in any culture anywhere on earth.
If your psyche is so fragile you fall apart when someone inadvertently reminds you of “trauma”, especially if that trauma consisted of you overreacting to a self-interpreted racial slur, you need therapy. You belong on a psychiatrist’s couch, not in college dictating what the rest of society can’t do, say or think. Get your own head right before you try to run other people’s lives. If you expect everyone around you to cater to your neurosis, forever, you’re what I’d call a “failure at life”, doomed to perpetual disappointment.