Millenials are just passing on the abuse they got from the boomers for enjoying avocado toast 10 years ago.
At least making fun of someone’s tech skills is rather harmless compared to questioning the basic desire to eat something other than ramen every now and then.
How is it possible to struggle with them, pretty much all desktop OSes have built-in support for those and Windows even lets you treat them like folders.
I think it's because Windows treats them like folders. They don't understand why things don't work like normal but windows explorer displays them like normal folders.
They have no concept of what a compressed archive is.