Don't mix physics and ethics. They are completely different levels of abstraction. Also, learn more about each before making hasty conclusions.

deny realism about relativity

This should be your clue that you did something wrong. Most likely that you misunderstand realism, relativity or both. One standard suggestion is to draw a spacetime diagram of what you are describing in each frame you care about. This tends to elucidate the usual confusion about relativity of simultaneity.