Either of these effects on their own would hurt the younger generations, and together would make the already slow wealth building hit a brick wall. (I'm 25, for the record, and I don't expect to be debt-free or a homeowner until well into middle age)
While it really shouldn't be true, and at the level of financial mechanics probably isn't, the stock market has become the measure of the economy. Remember, pensions are dead and buried, and the nuclear family standard means that relying on your children (read: you and I) is not the bulwark it once was. That means 401(k) performance is really, really important, as terrible as that may be -- its just the reality right now.