Holy Christ, they're really going out of their way to make Ren hateable. Like, I can kinda get it, he's a modern dude with no survival skills thrown into the stone age and he's freaking out. But he's been here for what feels like a couple months at least, so you figure he'd have adapted a little bit. But no, he can't hunt, can't build, won't fight, and entirely is obsessed with going home over survival. Shit, this guy is asking to be murdered by Neanderthals.