Suits absolutely result from imperialism. It’s an example of climate-inappropriate formal wear that was reified into the global south through violence. Other cultures had their own formal wear and yet it is somehow the three-piece suit that is considered the height of formality despite that it is ridiculous to wear in humid weather.

There is also something similar that happened with various architectural practices in regards to heat ventilation and cooling. The only way that the same fashion or the same house ends up the getting counterintuitively copy-pasted throughout the entire world is through joint violence of state and capital and white supremacist ideology.