What to do if your older brother disrespects you?

Back then, I’d have older brothers disrespect me. Then, when it comes to a fight. They won’t let me fight them. Because of them, people online are disrespecting me, bothering me, and punishing me. They’re nothing but selfish cowards! Does your older siblings disrespect you. If yes, how do you get family members to shut up disrespecting you? If they not go let you fight them?
What to do if your older brother disrespects you?
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