Just because things are slowly improving doesn’t mean we can’t critique the status quo.
I'n not disagreeing that history repeats itself. It does. And there is good in this world. But you might want to take a wider look around a bit before declaring how great everything is.
a) We have so much food and so little need for the human body to expend energy (cars, infrastructure, oil, etc) that it’s a public health crisis.
b) We’d rather have $0 than see our neighbor get $10 while we get $5. Indicating that we have satisfied all material desires and the only thing left to do is play social status games. It’s seriously incredible that inequality (rather than deprivation) can be anyone’s main concern.
c) The planet is profoundly affected because participation in (a) is getting less unequal, spreading from rich countries to the whole world.
You are describing the tradeoffs of too much improvement, not a general downward trend.