It might be fine in your family, but it might not be fine when people use language that might be deemed offensive outside, because pound to a penny, most people use much the same language wherever they are, pub, work, walking down the street as they do at home or among 'friends'.
Yes, accepting death and destruction or being trained to accept it is a form of desensitisation, (which proves a point) and that does not make it acceptable.
On the world view? That's easy to answer. If you want a more equal and inclusive world, then language matters. Language informs and reflects our inner thoughts and prejudices. It's not difficult to make small changes for the sake of 'better' is it?