Is it possible Arthur was a fan of Kurt
Unlike Kurt, Arthur would take alot longer to become interested in Kurt's World let alone become a fan and then armoured with Kurt. I feel like Arthur is more sexrepulsed then a true incel. If we are talking sexuality I think Demi fits him, he wants a deep connection.
I just feel like he wouldn't think that Kurt was a threat to him. Kurt wasn't finding a lot of traction in his live streams and videos. Which is what lead him to do what he did. So at first I think that Arthur would be like oh this is nonsense whatever. Hes lame and annoying. But then as the live streams continue, it might make him raise some suspicions on if it's all real or not which would leave him to do more research and I feel like he'd gain more admiration for him than hatred.
Unless he went more viral than Arthur...then he might be like "alright. Time to off him."
Or in an alternative world, one in which Kurt has a side hustle as an Only Fans/cam model [Kurt is an attention whore and killingmakes him horny];
Arthur is a frustrated, chronically online and disillusioned senior. During his hours of doom scrolling he comes across snippets of clips of what people have dubbed as 'Gore Porn'. Most comments are calling it gross and it shouldn't exist while others are saying how grateful they are about seeing blood kink in mainstream porn.
Of course this peaks his curiosity and interest. He finds Kurt's account and subs immediately! He wisely uses credit card information he bought off the dark wed. He becomes obsessed with it, his OCD definitely doesn't love the idea of being covered in blood, but seeing this young and average looking guy covered in blood makes him feel things.
To get Kurt's attention he makes his first kill and dedicated it to him in a DM, saying how he would love to see Kurt covered in his victims blood and how he would enjoy filming Kurt in the mes.
Thank you @r0segardendr3ams for letting me pick your brain and use your words.