Those things are also socially unacceptable in Japan. My experience is that the often discussed "micro-agressions" against foreigners happen about as often in Japan as they do in my own country (US, grew up in Texas).
Of course, the only complaints that foreigners in Japan can make is about trivia. The US is so fucked up that we cannot seem to stop shooting unarmed black men, we're separating mothers from babies, and as of last week now tear gassing families at the border. So not sure if you are American, but many of the foreigners in Japan that complain of discrimination are, and I just want to say that I think it takes a lot of balls for an American in Japan to be like "hey, you guys can do a lot better with the discrimination thing."
As horrifying as someone being impressed with your ability to use chopsticks is, it's not quite so horrifying as being literally shot for walking on the street.
Many people in the US freeze up if a black person so much as walks by them on the street. And on the other side of the pacific? Ask a random stranger for directions; 9 times out of 10 they will stop whatever they are doing and walk with you to wherever you are going.