that they only do it to be "anti-american"

Not even a valid argument. If it were true I'd still support them for that as in general that is the right position to take. Very few times will it place you on the wrong side, especially with the US entirely gutting its few mildly benevolent manipulation programs like medical and food aid to the rest of the world you don't even have to contend with "b-buuut USAID gives starving people food, even if it is a front of the CIA and has had campaigns trying to overthrow the Cuban government". Because well now they don't. They've even gutted the few public goods they founded for their own imperial core citizens like PBS, very limited public healthcare/medicare, homeless assistance, etc.

And really why might the DPRK be anti-American? Anyone? Anyone? Yes it's because of the genocidal attack of the US against them in the 50s Korean war. Its because the west installed and propped up a dictatorship in the south and separated families for decades. It's because the US regularly conducts military "defensive drills" simulating an attack against a state they nearly destroyed but for the help of its neighbor that still has trauma from that and does not want the experience of fighting the Americans again. Meanwhile the north conducts no such drills. It's because they have been heavily sanctioned by the US and the UN at the urging of the US for decades. It's because they never got a formal peace treaty and are still technically at war with the country occupying their south.