That may be true. But, if somebody offered me a time machine to travel back in time and live at any point in history, would I take it? Hell no.
> purchasing power is going down
That is not a new thing.
> quality of goods is going down
Phones are better. Computers are better. Cars, planes, washing machines ...
> life expectancy is decreasing
On the whole, this is not the case.
> child mortality is increasing
Globally?
> illiteracy is increasing
Globally?
You seem to have a negative view of things. And sure, many things are not great. But the examples you gave are not it.