Right! And this whole being shot multiple times, or stabbed with swords 50 times and still fighting! One shot and your character should be on the ground bleeding out!
Save games are also unrealistic, as is pausing. Games should be finished in one sitting, or not at all!
Or not.
Games are entertainment, we play them to have fun. Who cares if they are realistic, as long as they are fun. Some games go for the gritty, realistic combat style, think STALKER. But those games only appeal to a certain audience, most casual gamers actually hate them. Much more popular is the games that make the player feel like a nearly invincible god of combat, that can mow down wave after wave of legendary creatures with just enough danger to make him feel like it was an accomplishment.