That "FB is heavily profiting from professionally created content that takes a lot of money to create". Sorry, I thought this was obvious from context, since it is what you accused the GP of not considering.
Second, I've posted the (admittedly circumstantial) evidence in direct reply to you multiple times. You've not engaged with it in any way, but just repeated your talking point.
You don't appear to be acting in good faith in this discussion. Your need to put some effort into this, and actually reply to what people write.
>> FB is willing to block news links, which suggests they don't actually profit from them meaningfully.
This is just an assumption and not evidence.
FB just isn't willing to pay for it.