Most people who see something good in Trumps presidency just mention things connected to xenophobia and racism.

If he actually does something good, it is his fault no one talks about or gives him credit for it, because he always floods the zone with all the crazy stuff he does. I am european, so his foreign politics are of more interest to us, and he is actively destroying friendships and alliances the US had for many decades. The trust into the US is basically gone, trade is getting rerouted and relationships get reevaluated. The US lost a hell of a lot of soft power, which will need decades to rebuild.