Arbitration is often a good thing, by avoiding clogging up courts and arbitrators can sometimes be better than whatever judge you’d get (since both parties have to agree to the arbitrator). It’s still legally binding and arbitrators have made lots of great rulings.

But not as a replacement for class action. The whole point of class actions is to make it much more viable for many people to be represented because only one affected person has to deal with managing an expensive lawsuit and there’s just one case instead of hundreds of thousands of arbitration cases (which still cost a ton of money for lawyers). So IMO arbitration is great, but shouldn’t be allowed to replace class actions specifically.