Re: inlaws choosing wedding dress 
I think we need to actually read what the OP is writing and not make ASSUMPTIONS about her life or her relationship with her husband/in-laws.
As for whether or not her in-laws treat her with respect…below is what OP herself wrote about her in-laws. After reading the words below…I’m not sure how anyone can suggest that the husband or the in-laws don’t respect OP or her family.
We need to stick with the issue at hand and not make it into something its not…OP already had her nikah and seems to have a great relationship with her in-laws and husband. This wedding dress seems to be the first major disagreement between OP and her husband(and his family). Does anyone here know of any marriage where everything is perfect and there is never any disagreements??
In order maintain the harmony she ALREADY has with her husband/in-laws…the OP will have to lose this one “battle”. For whatever reason (the MIL due to tradition and the husband due to him being a guy and not realizing how important this is to OP)…they’re not “getting it”. But for anyone to suggest that the in-laws or the husband doesn’t respect or love OP due to this dress drama is ridiculous in my opinion. They may be blind to how much this is hurting OP…but not for a minute do I believe that they have any malicious intent towards her.