Yes, .25 is anemic.
I had an acquaintance the used to have a drinking problem. One day, he was cleaning some little .25 auto pistol that he owned, I don't even remember the make. In his inebriated condition, he pulled the loaded magazine, turned the gun on himself to check the bore and somehow pulled the trigger. The chamber was loaded and he shot himself in the face! He said it felt like someone punched him in the face but he didn't even lose consciousness. His wife drove him to the hospital to get the bullet removed from where it had lodged in the back of his jaw. He's been sober for over 20 years now.
My son had his car broken into years ago. A tool box containing his little Jennings .25 auto was stolen. About two years later he was contacted by local police, the .25 auto had been recovered (it was registered to my son), and he was told he could come pick it up. When he met the ofc at the police station, he found out the thief was in the local hospital recovering from accidently shooting himself in the neck with that .25 auto! Turns out my son knew the perp from high school years earlier, who recovered fully....and then went to jail.
These two stories are true. Suffice to say you're absolutely right! Even a .22 LR would be more lethal.