Here's some of that nasty Christian judgmentalism on display, by you. It's none of your business how people dress, and I'm astonished that you would complain about how people dress. This sort of judgmentalism is one of the reasons that I've grown to thoroughly dislike most Christians. Seriously, if you don't like how I dress when I enter a church, what you need to do is be quiet and realize that it's my business and absolutely none of yours.
The judgmentalism in Christianity is so over the top, even about something so trivial and inconsequential as clothing style.