Are fashion brands becoming more than retailers of clothing?

As Shein prepares for a possible New York stock listing, Inditex is so far dismissing the threat, yet it has few defences

The company joins Facebook, TikTok, X, YouTube and others on a list of "very large online platforms" which have more than 45 million monthly active users in the European Union

First, is any of this even ethical? Second, how is Shein retailing clothing so cheaply?