@Doll @p Here is how you ruin them, lean in. Dead pan ask them "why do you only look at half the picture?" When they ask what you mean and they always do, hit them with the chinese zodiac sign and say "you must understand how both interact to find balance in life". And then ask them "Do you feel lost sometimes? (everyone does) I wonder if exploring your eastern sign and not just living under the western signs will help you to find your path".
This is funny every time, but when it sends someone into the rabbits holes its even funnier. The more you know about the occult, overlapping/simulated realities, and mythology the more you mess with them, Do it enough and you can just drop esoteric racisms and clear up historical inaccuracies they may have. Its a great way to wake those type people up.