I Feel Another Rant on Language Coming On

I know some may consider me annoying for doing these, but I just get worked up when I see language being mangled repeatedly. If you are in a tough situation and you want to take everything way down in intensity, you DEFUSE the situation or remark.  You do not DIFFUSE it.  The metaphor is about an explosive device, you nip the fuse off it or "defuse" it to take away its potential to cause trouble.  Taking a bundle of dynamite sticks apart and spreading the sticks all over the place will not stop it from doing harm, that would be "diffusing" it or "spreading it out". I keep hearing people using the wrong words over and over again...and it just gets to me after a while.  We all make mistakes, but this is something different.  This is about mistakes becoming the norm forever more.