Actually, to my mind there's a good case for sites like Youtube to ask for money from the ISPs.
The ISPs users want connection to the Internet because they want great content (cat videos on youtube and the like). If Google blocked free.fr users from accessing Youtube, it's likely that many free.fr customers would go elsewhere, to another ISP that can provide them with the cat videos they crave. And Google need to pay for all the bandwidth these users eat up repeatedly watching cat videos somehow.
The ISPs users want connection to the Internet because they want great content (cat videos on youtube and the like). If Google blocked free.fr users from accessing Youtube, it's likely that many free.fr customers would go elsewhere, to another ISP that can provide them with the cat videos they crave. And Google need to pay for all the bandwidth these users eat up repeatedly watching cat videos somehow.