Doesn't imply this nor that they're "shithole people" in the first place, if that's even a thing. You must be from the western region of the UK, where they use infer and imply interchangeably. It's all in your head. I remember a time when people knew what things like racism meant... these days it's hard to tell what isn't racism. Sad?
Countries aren't people. People are admitted, not countries. Discrimination isn't necessarily racist. He could think these countries are shitholes for a myriad of reasons. I think the UK is a shithole, because of all the surveillance, the overcrowding, the rudeness, its surrender to Islam, and above all its unreliable LTE. None of this makes me a racist...