"im a man it doesnt bother me"  Wait a minute... wtf

I guess omega men are so effeminate heesoo counts them as women...but since he is a beta he can protect himself...yeah it's doubly sexist but I was gonna let it slide bc heesoo was so badass

Actually I think he meant he can protect himself when he said dat

I think he said that because:
1. He's a beta, he's not affected (weakened) by pheromones, that's obviously.
2. He's a man, that means he's got enough muscles/physical strength to fight on his own.
I don't think there anything sexist-implicit here.

I meant sexist towards omegas and this is just mho; he always contrasts betas and omegas to Dojin fsr