While Trump's actions during Harvey are mediocre at best and is all for show, it will never be as bad as his response to Charlottesville. Possibly one of the biggest blunders of a president in history.
More so than Katrina, running guns to the cartels, or getting a blowie in the Oval Office?
Yes worse than even Katrina, never proven although Iran-Contra runs in the same category of "greatest blunders" (though arguably even worse), and not even remotely in the same universe as the POTUS overtly supporting the participants of a neo-Nazi march.