To say Trump did “nothing” is flat out wrong he actually supported the Suadis campaign against the Houthis and worked against them in many ways, formally designating them as a Terrorist org. was simply the next step.
Biden has signaled formally and informally that he is intent on reversing Trumps policies towards the Houthis.
It’s only one of the terrible policies the Biden is implementing.
But it’s especially comical that he has decided that an organization that contains the words Death to America as part of their slogan is not a terrorist entity but a few hundred people who stormed the Capitol are.