The thing which people are clearly having a hard time with is getting their heads wrapped around the fact that 90% of people will continue to use banks and continue to trust institutions even in a fully Bitcoinized world.
Which opens up the opportunity for continued or even extended financial slavery or the abuse of that trust.
But with that said, Bitcoin is a huge improvement and it's up to every individual to realize their own full potential. And even if there is fraud or manipulation, there will never be bailouts, and there will NEVER be more than 21M Bitcoin. So the positive trend will be undefeated over time.