YES to all of this. So many good points!
Roxanna, I fully appreciate how much you and others enjoy wearing gear and Athleisure. I have many clients and friends who feel just like you do! I am always on the side of the wearer, and vote milk it if you feel fab wearing technical fabrics and the look, and it works well for your lifestyle. I'm sorry that did not come through well enough in this morning's post.
As La Ped says, sweaty cotton is a nightmare. I can't do a hot yoga class in anything but technical fabric. Full stop.
The aesthetic appeal and comfort levels of Atheleisure and technical fabric is like everything else fashion and style related - subjective and personal. Some people like it, and others don't. There is no right or wrong because it's simply a preference. It's fascinating, and we can all live in peace respecting the likes and dislikes of others
As for the negative environmental and socio-economic impacts of producing/purchasing/wearing/laundering synthetics versus natural fibers....... that's a vast, highly debatable, and emotive topic with no solutions at this point - only compromises at best.
For the record - I DO wear synthetics! They are particularly good in garments blended with natural fibres.