Their argument is that the vaccine merely reduces symptoms, and doesn't change transmission rates or anything like that. So if you're not vaccinated, you're more likely to end up in the hospital, but you still could have serious symptoms even if you're vaccinated. It really makes no sense.

Which makes you wonder why anyone should bother getting it in the first place. It's pure virtue signaling, "look, I'm a good sheep! I always obey nonsense instructions!"