huju,
“Peyos and tzisis are not expressions of “Jewish pride.” They are fulfillments of mitzvos. Period. And “Jewish pride” is an egregious, misplaced emotion. Tznius is about humility, not “Jewish pride.””
The OP is not talking about just having peyos and tzitzis, but the very public display of them and going beyond the minimum (e.g., long tzitzis, long curly peyos) in a place where that is not common. Also, what do peyos and tzitzis have to do with tznius?