What’s the main problem with the Internet? [#14844]

Is it all of the obscenities and indecency (peritzus) found on the Internet, or is it because the Internet contains kefirah (heresy and denial of G-d) or because it contains a lot of secular material? Or is it because of the mixture of holiness and secular material together? What exactly makes the Internet into the “shaar HaNun d’tumah”, the worst level of spiritual impurity?

The tumah of the Internet is that it is a mixture of all tumah together, without exception, and at the root of it all is the kefirah (denial of G-d) on the Internet, even with all the good that’s found on it.