Never. I wear all cotton, linen, and wool if I can get it. Yeah, I still iron my clothes. HATE polyester bein hot in the summer and cold in the winter. Don’t trust most other garbage. I do love silk in the winter cause its warm. You gotta figure it keeps the bugs warm.
I do a lot of outdoors stuff and have plenty of items made of performance fabric. In the winter especially, cotton kills. It retains moisture from sweat and contributes to hypothermia.
In the summer, I’ll wear wool socks, synthetic everything else. But I often slip on a cotton T-shirt for sleeping. It’s just more comfortable.
To call certain textiles racist though is just flat stupid