How do Trump supporters justify him siding with North Korea over South Korea?

Trump throws a hissy fit at South Korea for not helping the US blow up Iran and scales back joint military exorcises. Then he claims a great relationship with Kim Jong Un and the country that helped Iran develop its nuclear program. North Korea played a huge role creating the problem in Iran. How do Trump voters justify him siding with North Korea over South Korea? How does this even make sense?

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How do Trump supporters justify him siding with North Korea over South Korea?
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