The result is a huge amount of businesses which are operating legally, filing taxes, and doing their best to abide by the payment processor's TOS being dropped without explanation. Furthermore, considering how incredibly monopolistic the online payment processing industry is, there's few alternatives once a merchant has been dropped.
Outside of PayPal and Stripe, you'll be hard pressed to find a payment processor suitable to handle worldwide online payments. The next step down from those 2 options are incredibly limited in comparison. An account closure on either of those two platforms is essentially a death sentence for any online store.
Imagine, these payment processors have the ability to terminate your operations at any time, for any reason they wish, and they do not even need to provide you with an explanation. Your business is at their mercy, and you never know when or if they will pull the plug.
Just another example of how the modern landscape is hostile to small businesses. These trends will continue, and you'll see plenty of innovative startups and small businesses get cut off from payment processing simply for being different. It's as if the payment processors are saying "Go open a traditional business! Sell toilet paper! Sell toys for kids!" But the reality is, nobody buys typical physical products from small businesses online anymore. They almost exclusively use Amazon and Walmart, or other major retailers.
It's really depressing out there.