Dell1957: "Interested in meeting a Asian lady , Japanese or Korean" as in dating them? Well then maybe its not a problem about being Hispanic, maybe its you.
If every attractive Japanese/Korean single women you meet you trying getting "close" to, then they are going to be put off by this. Its not a Japanese thing- a lot of women are turned off by an overly strong or blatent intention approach. Perhaps you are simply coming on too strong & your intentions are to obvious to these women (from the sound of your OP, you went from trying it on with one woman to the next woman to the next woman)- no woman likes a guy with a one-track mind. Perhaps because you are so desperate to go out with your very specifc choice nationalities, you are not reading their hints/picking up their body language. Perhaps just to get you off their case, the Japanese women told you "We're not into Hispanics", not because this was necesarily true but just so they could easily get you off their case. And IMO its pretty obvious that you're only interested in dating these women rather than actually wanting to get to know them as respectable individuals because you took no time to cut your losses before moving onto the next Japanese woman you saw etc (i.e. as soon as it was clear that dating was off the cards, you no longer had any interest in the previous ladies- so IMO in some senses they were right not to go out with you).
My advice: Stop trying to date every Japanese women you see who remotely meets your wants. Sure, the Korean women sound polite, but this is not because they are Korean this is simply because thats who they are or were that night. Perhaps the white guys social skills were better than yours, but this is not because they are white or because you are hispanic. The Japanese women rejected you, but this is not because they are Japanese but because they probably were not interested in or impressed by the image you created of yourself that night. Your personalities just didn't click.
So my advice: Stop looking at everyone's skin colour and start looking at people as individuals and then you might start to see the solution to your problems. Sexual attraction is sexual attraction- sure sometimes skin type is involved (though not in a racist way), but the most important thing is who you are as an individual and who the other person in question is as an individual. Get to properly know people first & treat them with respect before trying to go out with them. If you want a long term relationship with anyone this is crucial- unless you are a total stud, a few hours of small talk and some chat up lines is not going to win over most womens hearts. And if you just want sex, well, i can totally understand most women not wanting to just give themselves to some random guy with alterior motives who tries it on with them. And this has nothing to do with the fact that these particular women are Japanese.