There are two possible outcomes to this line of thought.
The first, is that your son looks visibly Asian. Google “Hapa men” to get an idea of how many do, and how many don’t.
What people seem to forget is that “Hapa beauty” does not thwart off racism. Passing as white thwarts off racism – but not always, especially when talking about sexual racism, and the most discerning women will consider a half Asian the same as a full.
People who discriminate do not catch themselves and say – wait. “That guy is only half Asian,” before rejecting you from a job, or rejecting you from romance, or deciding to spare your life, or spare you from a stabbing, as from this 15 year old news article from Germany.
The second possible outcome is that he passes, like me, or like I did back then.
You then seem to forget that your own flesh and blood son will internalize the anti-Asian male hatred and unconscious sexual proselytizing that occurs within a mixed race marriage;
i.e., White man / Asian woman relationships are so common as opposed to the reverse, for a simple reason that you don’t want to see, or admit.
Will this reason not have some sort of butterfly effect onto your child? What is the reason? The real reason? Not the reason you want to believe – but the real, all encompassing reason – the same reason that grass is green, that the sky is blue, that the ocean has waves.