1. Alt stores already exist. There‘s one called AltStore. All this will do is remove the 7 day timeout on these kinds of stores, nothing more.
2. Users who want to continue using Apple‘s own payment system will not be prevented from doing so. If you continue to buy from the app store, you can keep using ApplePay
3. iOS has many features that are extremely desirable and unique to the platform. Dismissing valid user concerns about Apple‘s bad app store practices, rejecting completely valid and worthwhile apps from entering the store simply because they didn‘t properly review them is not a valid argument. Telling people that if they don‘t like it they should put up or shut up when the outcome doesn‘t affect you in any meaningful way is disingenuous at best, outright wrong at worst.
It‘s a good sign that these bills are passing with an overwhelming majority. It‘s time for Apple to wake up and realise that developers and consumers are tired of Apple‘s policies.