If you are a business doing more normal business, selling something with no sort of required subscription, something the customer does not depend upon you for, then you are still free to stop doing business with them (minus a few cases related to protected classes).
That's not a problem really. Think of country clubs. Your investment is completely lost the second you stop paying.
I understand that folks may dislike the subscription model, but it's not illegal.
The problem is for services where I pay a la carte to build a "personal" library of things, like steam games, Google Play movies, Amazon Kindle books, etc. I've paid a one-off price for the digital content with the expectation that I will have access to that content indefinitely. If I am abusing the platform, causing issues for others, or generally and blatantly violating ToS in a major way, then I think that's a different story. But if I need to dispute one transaction, then the ability to immediately remove all access to previously purchased content immediately, indefinitely, and frequently without review or appeals - is very anti-consumer.
It effectively nullifies existing consumer protection laws. I will never issue a chargeback or complaint against Valve (Steam) or Google, even if I have a perfectly legitimate reason to do so - as loss of those accounts after all of these years would likely be more costly to me than most erroneous charges I'm likely to see.
By steam sells games for $60 a piece, they are not a subscribtion service. You can't have it both ways.
In this case, telling a private business they are forced to entertain customers who have robbed them, it's outrageous. And while I understand that chargebacks CAN be legitimate, they also CAN and often are illegitimate. When I worked in small business computer repair, we literally got out of the business of selling expensive machines because more than half of all orders were fraudulent and were charge backed with zero recourse -- we lose the machine, we lose the money. We lost an incredible sum of money to thieves this way, and so being told we are forced to do business with them would have destroyed our business.
If you wanted to create a new class of online public service like Twitter and Google and increase regulation on them as one might do hotels, that's one thing. But a blanket requirement that all businesses must entertain customers who chargeback is a nonstarter, imo.