I know what you're talking about. People like that, in this business, we call them fanatics, elitists, purists, and anime nazis. These are the people (many of which are ironically american fans who are so into it you could practically call them brainwashed) who believe that anime should only be available in japanese and with subtitles and that anything more than that is a sort of blasphemy and disrespect to the genre and japanese people.
These people are quick to point out things that offend them and offend the japanese people (they take it upon themselves to represent all of Japan), they have a huge loathing for american dubbing, and these are usually the guys who are so into anime that its like a lifestyle for them. These are the people that buy pocky (when all pocky is is just wafers on a stick), japanese treats, literature, and will even go to the lengths of ordering imports of these things just so they can wave them around and show their friends what an anime fan they are. The business is getting rich off these people. They're more than willing to practically sell their souls to their japanese masters, and the business, in turn, sees a profit margin in them.
They're just posers dude. They invest all of their time to create this image that will impress people. So if you run into people like this who are going to start spouting about anime should only deal with asian things, and how it can only be subtitles (which if it weren't for subtitles they wouldn't be able to understand what they're saying, if they love Japan so much, learn the language and watch anime raw, like the japanese people do when it airs on japanese tv), then just ignore them.
These people try so hard it isn't funny. Their contempt for everything that isn't so leads people to have a contempt for them.
So just draw anime to your heart's content and take inspiration from whatever you want to. Things are changing, and any snob who wants to say you don't count has got another thing coming.
More and more americans (black, white, hispanic, etc) are becoming or are very good artists who can complete at both the amateur and professional levels, with our japanese counterparts. All we need to do is organize, and we'll be able to produce anime style shows in America, too, and american artist will create them. They've got nothing on us really, and race has nothing to do with it. Take your art where its more likely to be surrounded by people who have the same good spirit about it that you do, and things will be fine.
And if you run into an anime nazi, jap slap him. LOL 😀 (Hey, if they're so into their asian culture when they're not even asian, they should know how to chop you) 😛