Upward mobility is probably something every generation has complained about throughout history. Economic nihilism isn’t the answer.
Our future generations count on us to improve whatever cards we’re dealt
We're at a unique point in that there was a brief period in recent history where upward mobility was true, and now it's becoming untrue again and those for whom it was true don't believe its becoming untrue again.
Perceptions of the past are filtered through media that The life of the top 5% was the average.
Now, whether that's right or if the norm is a good place for the majority of people - That's a different matter entirely.