> Congratulations, you've found the goose that laid golden eggs. And now you say all geese lay golden eggs.
I mean I saw these signs frequently. Although yes, on the whole, people are pleasant and accommodating. This 'discrimination' will not ruin your life. It's a mild inconvenience and personally I don't care about it.
Essentially my point is that you're probably not going to move to Japan and integrate yourself into society. You'll always be an outsider, and you may sometimes be shunned in an explicit way, which is quite shocking.
And I believe you're right that it's illegal to discriminate on this basis there.
BTW, I'm not sure this isn't actually illegal. But as always, it's not because it's illegal that aholes won't do it.