If you are asking my opinion, no. But of course my or your definition of "respectful" or "appropriate" are likely very different than other cultures - here or overseas.
You don’t think dressing in a respectful manner is appropriate?!
Then I suggest you rethink the issue.
If you don’t think of a house of worship as God’s house
then I suggest you review the admonition to be an example to others and respect their views so as to not be an impediment in their seeking the Devine.