I hope you haven't forwarded this to anyone but family yet. I'm sure you didn't notice (and I imagine [original sender] didn't either), but there's a lot of nasty racism in it. We know you better than that, but somebody who didn't might get the wrong ideas about your views from it.
It's so sad that once politics comes into the picture, so many people have a hard time following Christ's admonition to love our fellow man, regardless of unimportant details like the color of their skin or what language they speak! I'll certainly be glad when election season is over and there isn't so much propaganda floating around to watch out for.
It's not nearly as publicly shaming (or expletive-laden) as what I initially wanted to send, but I'm hopeful that it will have a chance of actually being effective, and it seemed like the best way to call someone out on being gross and racist without having it escalate into something where I end up disowning a whole bunch of family members.
But hey, now I don't have to feel guilty about not being able to make it to the family reunion this year!