You don't need to replace Amazon in it's entirety. You just need to shop from different places selling only a particular category (clothes, books, computer hardware, pet supplies etc) or straight from brand's shop. At least that's what I've been doing. Also haven't renewed my prime subscription for last 2 years.

All the power to those that like Amazon but I have never bought anything from Amazon and never will. I always look up the cheapest option (that is trustworthy) which Amazon never is. Plus I don't like their business model just like I don't like media mark (they killed of many stores by selling for huge losses for years). we want competition so we want as many stores as possible, we also want experts, so I rather go to a store that sells x type of products not x, y, z and also b like Amazon do.

Also big stores like Amazon only makes sense in the physical form, jumping between stores online isn't physical draining.

It's probably easier to replace Amazon than YouTube. Free streaming services don't make money, YouTube loses money, Twitch loses money, Kick loses money, the Microsoft one before it died was losing money. If it's free to watch it loses money, and these are companies that do a ton of work to try and make it not lose money, and it just doesn't work.