Isn't this an admission that the US justice system is fundamentally unjust? Wouldn't it be better if the judicial branch was functional and could update old unjust laws so there were zero people who needed their sentences commuting?
Laws have changed and he retroactively reduced sentences that were longer under the old laws. But yes, the reasoning for the change was that previous laws were unjust.
I mean yeah, which is why the president appoints judges and Congress writes laws. The judiciary branch is indirectly beholden to public opinion, but you have to remember that in terms of political representation half the US is Republican, so these things you consider unjust are simply what that other half considers just and they get to have more or less as much representation as you.
Presidents should not have pardon power. It doesn’t matter what the reason is, if the president can just trump the entire federal justice system, said system is pointless.