Chase E.N.T details how he unintentionally became unhomophobic.

Racism -
1) A belief or doctrine that inherent differences among the various human racial groups determine cultural or individual achievement, usually involving the idea that one's own race is superior and has the right to dominate others or that a particular racial group is inferior to the others.
2) A policy, system of government, etc., based upon or fostering such a doctrine; discrimination.
3) Hatred or intolerance of another race or other races.

Homophobia - Unreasoning fear of or antipathy toward homosexuals and homosexuality.

Two Sides Of The Same Coin Meaning....well my interpretation - Two things that are very closely related although they seem different.