Because their masculinity and confidence in themselves is so impeccable that nothing that anyone any where can say or state about any other sexuality will ever effect them.
They are so comfortable and sure in who they are that nothing they ever see, no matter how different, will ever affect them.
To me, someone who accepts everyone else while maintaining their own surety on themselves is the height of masculinity.
Because their masculinity and confidence in themselves is so impeccable that nothing that anyone any where can say or state about any other sexuality will ever effect them.
They are so comfortable and sure in who they are that nothing they ever see, no matter how different, will ever affect them.
To me, someone who accepts everyone else while maintaining their own surety on themselves is the height of masculinity.
“Waste no more time arguing what a good man should be. Be one.” – Marcus Aurelius
Edit: extrapolated for modernity, rephrase as “good person”