That said, the phenomenon is not limited to video games. Almost all forms of violent media (action movies, video games, etc) trivialize "collateral damage". If the main character survives and the bad guy dies, it's supposed to be interpreted as a happy ending, even if dozens, hundreds, or thousands of civilians are killed.
But really this is still a subset of a larger phenomenon. Media in general depict main characters as real and non-characters or secondary characters as less-than-real, subhuman props.
Maybe this isn't a problem, but I think the Red Cross is right to at least bring it up.