Ive been to Japan a few years ago and they always felt very friendly and welcoming. They're somewhat shy and awkward, but can't say I had any negative experience.

If you want to feel bad, go to Italy, especially Rome. Many Italians are super racist, hate tourists and are not afraid to hide it.

You're going to face it anywhere you go. Don't let it hold you back. There's always a slight feeling of unease around those that are different from yourself. But not everyone turns it into a justification to hate. I saw this video 5 years ago about a guy going to Japan trying to track down the location of a meme image from the early internet. They ended up heading off to a smaller town that wasn't very touristy. Something that could go very badly. As some of the small towns like anywhere else can be very insular. But instead when they got there. Ended up spending the night chatting up an eager bar owner about Kurosawa and star wars.