Historically, they do. Cruijff, De Boer, Kluivert, I'm sure I'm missing a few oldies as well. Even if they haven't produced a ton of top talent in recent years, their historical modus operandi is to get players from their own youth ranks playing in the first team. And it's not "buy low, sell high" like the poster I replied to was implying, is all I was trying to say.
My posts are in good faith, just trying to play some devil's advocate here and there. You can look up my posts re: the Kane transfer saga last year, where I also said he had to suck it up and get playing again because he had to honour a contract.
You're wrong. Business models change. Well, the previous model wasn't much of a business model. They only became a listed company 1998 and they nearly went bankrupt that same decade.
You're going back 30 years on average in the examples you gave, and you're ignoring the really obvious recent ones:
De Jong, Ziyech, Antony, Martinez, Alvarez, Tagliafico, Neres, etc, etc.
Their model is clearly: Buy early for 10-20m and develop (did this start with Zlatan?) with the odd veteran and genuine academy player thrown in (Gravenberch, Timber, Tadic, Blind, Berghuis).
Of course they have one of the best youth setups, but it's not true that their kids regular go on to be "super stars", more like Van de Beek and Veltman caliber players.