Honestly speaking, there's only one sure fire way to destroy anime, and even then, the odds are better that our planet would be visited by aliens first before it happens.
Short of trying to get the government to ban the import/export of anime (not going to happen as it will most likely end up throwing economy into an unstable balance world over), is to convince all the anime fans out there that what they're watching is evil. That it is wrong. That is needs to be destroyed. IE: You need to do what is virtually impossible and get thousands among thousands of people to agree on one thing.
No matter how you try to do it, its going to fail in the end. People already tried to do things like you have, and people will continue to try with each of the next big entertainment thing. Not saying you shouldn't stop, just that the odds of your success are very, very small.