Because even in general, I don't understand how people can listen to this kind of music at all. You can't decipher the lyrics. The guitars are drumming are good, but it mostly sounds the same...
Also EDM = electronic dance music like Trance, House, Ambient, etc.
People could say that about any genre.
The music you listen to is the polar opposite of hardcore music...ANYONE would be taken aback if they are avid techno/electro/whatever listeners and they throw on thrash/hardcore.