Many YouTubers are obsessed with affiliate marketing because it offers a great way to earn passive income. They can promote products or services through links in their videos and descriptions. YouTubers earn commissions when viewers make purchases through those links. Affiliate marketing allows them to monetize their content without relying solely on ad revenue. It also provides a chance to partner with brands they believe in. Many YouTubers find that affiliate marketing aligns well with their content, making it a natural way to generate income. The potential for long-term earnings is another reason why many YouTubers are drawn to it.