the fed creates 1.25 trillion and makes the assets that the poor seeks more expensive than it would have been if their price were allowed to fall. This is not nominally stealing from the poor, but it's activity like this that steals the value from the earnings of the poor, and steals their economic potential. It's stealing because it's not a voluntary contract and it's a one-sided power move, not a "natural consequence of the universe", like "inflation resulting from an earthquake" would be.
In this case, I am, of course, arguing against my interest, since this activity is propping up the price of the house I bought this year. But the fed does a whole lot of damage otherwise, mostly by printing money and giving it to the banks.
However, this does not seem like some unforeseen accident or an unfortunate side effect of fiat money, it seems to be a deliberate policy that will not quietly go away if Bitcoin becomes more fashionable. In addition to outright bans (like the ban on gold from '30s to 70s), there are tons of more subtle ways to either suffocate daily Bitcoin adoption if it becomes a threat, or find ways to control it such as KYC, tax reporting, etc at the main exchanges. Also, even if Bitcoin does replace fiat as the medium, the lending regulation will still remain - to lend money to you, anyone needs to first know who you are, calculate your risk, and charge you an APR for that risk, and that will probably remain regulated no matter what is used to move the actual transactions.