Update) My brother’s wedding and the nightmare in-laws

So many people gave me advice and showed interest in my last post, so I’m writing an update. My husband and I read the comments together, and honestly, we clashed over so many different opinions. My take is that since it was my biological brother’s wedding, it’s my family’s big event, and my husband and I should be there as the daughter and son-in-law helping out. But it seems like my husband and his parents didn't even consider that. They actually expected me to escort them around and introduce them to everyone, and they even scolded me for not doing that.