Quote from Kaden_Schuelke
That's the most ridiculous crap I've ever heard. So are all texture packs illegal? Where do you think they start from?
Texture packs were made by graphic artists, whether they work for Mojang or whether they are freelancers doing it for recognition or for fun. The Mojang Terms of Service and EULA are probably the laxest I have ever seen, basically the one and only firm rule is to not distribute anything they made to anyone. (Especially not to whiny jerks who simply want to pirate their hard work instead of paying for it.)
Mojang freely allows anyone to modify their work, they say so more than once in the terms of service and eula, but first you have to get it legally to be able to modify it. You are asking people to violate the terms of service and eula to give you something that you have not paid for.
In fact Mojang is so nice about all of this that you can download the .jar file directly from them without even having an account. If you had bothered to spend a few minutes looking for it online instead of whining here you would have it already.