Huge difference between building AI and a search index.
Why? In both cases the SaaS downloaded the whole web and derives 100% of revenue from content they didn't make.
Yes but the product is different. One is a shovel for you to dig, another one is an artificial intelligence that competes with or replaces the digger.
Bing isn’t re-selling you back the content it took.
They absolutely are; you pay by viewing the ads.