Looking at that list, I feel like we would first have to establish which things actually do make life better and which only make it more comfortable. This is going to be highly subjective.

For some reason, I'm not entirely willing to believe that my parents (who are still alive) had a less happy life than I have even though they didn't grow up with an iPhone. And it's not like modern conveniences have no downsides (e.g. increase in stress). That's not to say I would give up on these things readily, I'm just way too used to them.

I think probably most people could agree that treatments for diseases that regularly also affect young / middle-aged peolle are a good thing. It's hard to argue that someone in the prime of their life should die of some silly infection.