Horror Doesn't Mean Blood And Gore

As an avid movie fan, I was originally only a fan of horror's assuming that blood, gore and nudity was horror when it actually wasn't. For instance an excessively gory horror film would probably be Sam Raimi's The Evil Dead series.

However, horror movies were not all about blood and gore, it was about producing legitimate fear and the suggestion that something is there when there isn't anything whatsoever. For example 1942's The Cat People

Now in modern horror the basis is blood and gore or (in the case of American cinema) a butchered remake of a Japanese classic. Now there's something why do the American's feel the need to ruin Asian movies. For instance:

So why is this? Is it because they are different or is it because they are extremely desperate so they therefore have to remake good films into bad ones