Am I being childish?

Tayaisha • Unsure about ttc or not lol
My husbands family is afghan and that means we have ALOT of large family gatherings (once a week) 
We have a 5 month old girl and every gathering my MIL puts a dress on my little one. They don't ask or anything they put it on. I hate dresses and I never put her in dresses I like to dress her in my own style but it's like I don't get a say or they throw a tantrum over it get upset blah blah blah 
I feel like I shouldn't need to dress my already stunning girl up in ridiculous uncomfortable dresses to 'impress' people! 
The headbands are a issue too 
It infuriates me that they think they can dress my child in whatever they like and if I say something they complain to my husband and get upset and passive aggressive attacks 
She also dresses my little one in onesies that are clearly too big because she thinks it looks better.. Again doesn't listen if I complain I literally just take my child and change her back to what I want 

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