This is typical Mormon Utah Culture where guys blame girls for impure thoughts and the school district/court/office etc steps in and makes the women change how they dress. You can’t pin this on the muzzies although both cultures do have a rather large disdain for women.
And polygamy is no longer required TECHNICALLY (according to their scriptures it is but it is not practiced except in cases of death or divorce).
My roomate at BYU got sent home from Orientation her first day because her shorts were just above her kneecaps. I have a rebellious streak - when I was in Utah in 2014 taking care of my best friend (dying of cancer), I had neon pink long hair, wore a large silver cross and tank tops. I am very pointed when I am in Utah to make sure people know I am no longer LDS.
Well, let me encourage you .. your resolve will help many people also make that decision to leave LDS. You may never know them or even see them .. but it will happen.