Well the thing with Eric is that he seemed to want to look tough and exaggerate to do so.
Yes, he was a teenager with anger issues, but a lot of what he said could be seen as an act to look ''cool''.
For exemple,if one was to take a look at his journal, they would probably conclude that he was a racist (mentions of the n-word and other things) yet in his blog (you can find a version of it online) he states that racists are stupid and irrational. He's a hypocrite, something that he acknowledges in his blog too,I believe.
People write in their journal for different reasons: Eric seemed to write in it when he was angry and Dylan, when he was sad. When you're angry, you don't always say things you mean.
That doesn't mean that Eric was any less suicidal than Dylan or that Dylan was any less angry than Eric, it's just that that's the version of them we see in their journals.
For Dylan, I don't believe he's been found of saying anything sexist,but some witnesses claim that he called the black kid he killed the n-word before shooting him.
Of course though, it wouldn't be suprising if they both were actual sexists considering their age and the time.
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“And those who were seen dancing were thought to be insane by those who could not hear the music.”
― Friedrich Nietzsche