I am not a Muslim, but have nothing but the highest respect for your faith. I am not Muslim but admire the clothing, is it disrespectful to Allah to wear the clothing?
Islam specifies an abstract minimum level of clothing for men and women - the actual concrete dress forms are tied to a local culture, not the religion itself. There is nothing inherently "Islamic" about Muslim clothing other than it conforms to that guidance. So no, there is nothing disrespectful at all about wearing clothing that is found in Muslim lands.