I can kinda see the “liking loli doesn’t make you pedo” argument from the standpoint of anime being low detail and highly stylized, leading to most characters (including many lolis) being fairly age-vague. Many loli character designs could pass as a petite young adult. I’ve certainly known several adults who’d almost certainly look like lolis or shonen protagonists if they were turned into anime characters. And if you’ve delved into the world of hentai, you’re bound to come across certain artists who draw characters that look much more explicitly like actual children than the average loli characters you find in popular anime do. There’s no defending that shit.