If the current system doesn't exist in 10, 20, 30 years then you've lost very little by contributing a meager 10% of your income (assuming middle class incomes, 10% isn't much), to retirement contributions.
And if it is still around, then you'll be ahead of most of our peers.
Regarding your parents' funds, were these pensions or investment accounts? Pensions got screwed, yes. But unless your money was being managed poorly, IRAs and such should've been fine, though temporarily low, you didn't lose any shares in your investments, just value.
