This thread nor the line about consenting to PVP, is about causing fights or upsetting people. This thread is about informing them.
Eve has always been a PVP game. Without the death from player vs player interaction the market would likely collapse. Therefore, the industrialists would not be able to sell their products, the miners would be unable to sell their ore. The PVPers would have nothing to do. Eve would get very boring very quickly.
So if you do not like the phrasing “by undocking you consent to PVP”, let me phrase it this way.
“By undocking you open yourself up the possibility of being attacked and killed by other players”
It really is as simple as that.