If you experiencing violence and stalking, that is the rational thing to do.
But as @Marvin the Dendroid said, if you continue to share thoughts such as race = IQ, expect difficulties. This is not a popular opinion; you will say it's because 'the truth makes people uncomfortable', but really, it's because it's not true. If you are a paladin for truth, don't you care that you are saying things that are wrong / ignoring facts / ignoring science / over-simplifying complex matters? Or are you merely a champion for your own subjective truth, wishing it to be accepted as objective? Give a read to the topic of rising (and falling) of IQ scores over time, how complex genetics are, environmental effects, etc. You can do your Googling. It is a more complex picture than "this group has this average, in comparison with that group", or "that is just how it is genetically" (lol). Genes aren't just 'that's what you get' (they are only part of the picture); please read about how different gens can be expressed differently (or surpassed) in different environments, how education, nutrition, and stress/lack thereof can effect performance, etc.
Regardless, none should be subject to violence or stalking for merely sharing their views.