I don't watch cable news and I don't pay attention to Jeff Teidrich or whoever so I don't know where this bullshit is coming from. At least one person responding is nominally anti-genocide, so I don't think that's the reason. Another came back with something about the funding bill for FEMA as if it's a gotcha.
What's their logic?
Right-wingers do commonly say "there should be no foreign aid given until we fix our problems". The problem is, there's a difference between giving aid to another country that just had a really bad natural disaster, vs giving money and military aid to help another country commit a genocide.
Also worth noting that foreign aid isn't done out of the kindness of their hearts, it's usually used as a tool of US imperialism. Trump and his base are just too stupid to realize that.