Stand back everyone, I’m going to attempt nuance.

Industrial design is about tradeoffs. Making the battery easily replaceable will come with drawbacks. Maybe it’ll be size, or water resistance, or durability, but something will have to be compromised. The extent of the compromises remains to be seen, and people will have different opinions about whether it’s worth it.

Ordinarily I’m not a fan of regulators making product design decisions, because that’s exactly the kind of thing market forces are supposed to be good at. In this case, though, there’s a demand that’s clearly not being met, and companies clearly have a vested interest in pushing consumers toward replacing their old hardware rather than repairing it, which creates externalities markets are unable to account for. Market failures like this are exactly the kind of situation where government regulation is needed.

Industrial design is about tradeoffs

Nope, for battery removal, nope!
Are you going to say that pentalobe screws is also a trade-off.

Also, smartphone are just too thin and it’s because you use a case that you tend to forget about it.

You’ll still want a car even if the phone becomes thicker, so in the end you’ll still end up with more bulk?