ZD – agree with DY on this one. Chassidim use mode of dress as a way to separate from others (both halacha following Jews and not), not as a specific “Halacha”.
And I have heard ‘Dvar Torahs” that claim that eating “Goyish Foods” even when kosher Damages your neshama
Source? Besides, what is a Goyish food? Did the priest/Imam make a blessing on it before it was prepared?