Every human after the last generation could say the same thing, for thousands of years "life has been getting better than the previous generation".
The big difference now is most of the civilized, educated world is just that - civilized and educated, taught that life is different than it really is, disconnected from the death and disease of yesteryear, taught that life is 'fair' and people are treated fairly, that people care.
And, again, you missed a big difference - the word "disconnected". When in the past life was hard I had a village or community rally around me. That doesn't happen for most people today outside of some small village types and religions. Many, many, many people live their quiet lives of desperation *completely* disconnected from reality, from care, from touch. THAT is new, and if you don't think it is, you haven't really studied history. Did people have shit disease that made life miserable with no medicine and no hope in previous generations? OF COURSE but you had hope and prayer and community. MOST (not all) do NOT have this today. If you think they do, *you* are the one who is disconnected from the reality of modern life for most of modern humanity.