Need help with SHIB, big problem

Hi guys. My friend invested several thoamd dollars about six months ago in the SHIB coin. I told him not to do it, explained the coin is a shitcoin and the market cap means it will never reach 0.01 and the technology and the team behind it aren't solving blockchain problems. I spent days talking him through it and he didn't listen. But now he's made 5x his money and cashed out. He even bought a new gaming PC, the same one I'm saving up to get since my portfolios are still red from trying to time the market on projects I really believe in.

So I need help explaining to him how he's an idiot for putting money into a memecoin and booking profit and why I'm smarter and more of a crypto person than him. I want to save him from having this happen again. please help!!