Why is it called Homophobic exactly? Phobia means fear and homo means human, so somehow this turns into Homophobia but the a is switched with c. I don't think anyone is actually scared of LGBTQ

Homo is a prefix. As in, homo-sexual, homo-romantic, homo-phobic, etc, means gay. Phobia means fear or irrational dislike.
And to quote google :
homophobia
/ˌhɒməˈfəʊbɪə,ˌhəʊməˈfəʊbɪə/
noun: homophobia
dislike of or prejudice against gay people.

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Sugas, just cuz some straight people aren’t ally’s that doesn’t mean that they’re homophobes

I know that...

Why do people use that as a insult? Homophobic?