mw13,
I find it ironic that we live in the first country since the days of the Gaonim that actually allows us the freedom to practice as Jews without interference from the Church and people like you want to use that freedom to to deny it tto others.
Contrary to your opinion, Boro Park is not a theocracy and you cannot dictate to others what they can or cannot see or do. Not all people agree with with your definition of tznius.
And you should care what they think. Even if they are wrong, that would be of small comfort to the men they might assault because they believe beards and peyos are forbidden. Once you establish that people can take actions into their own hands, it matters little what you think. The fact that the Russian peasantsvwho murdered Jews during this time of year were wrong in their beliefs didn’t make the Jews any less dead.