I would not disagree with your PayPal opinion, but this does not explain why companies that really want to sell stuff will let me use PayPal but Google and Amaz

I would not disagree with your PayPal opinion, but this does not explain why companies that really want to sell stuff will let me use PayPal but Google and Amazon does not, their lose, I use ad blocker for YouTube and found audiobooks on a different company that wants my money. So I am curious what Google/Amazon thinks about this (not your personal opinion about PayPal if I should not have the choice to use anything else then VISA/MasterCard)