Today is a Minhag, tomorrow it becomes “Halacha” and reason not to give people Aliyot and other things and children banned from schools etc
People are banned today for minhagim such as wearing a spodik vs. a Straimel. You have the choice not to attend those minyanim.
I have a friend who once was thrown out of a (regular shul) minyan because he didn’t have a Hat & Jacket for davening. The people who make those rules will have to answer to God, not you.