In WoW (or when it had open world PVP) Red = Dead. You killed the opposing member because there was absolutely no reason not to. The same thing happened on the Deity based server of Sullon Zek in EQ where it was Good vs Neutral vs Evil. You simply killed the other members because you couldn’t really interact in a positive way.
Taking out chat will do the same here. That’s a pretty boring way to play honestly.
Being able to speak, being able to cooperate, and being able to trade with other players makes things interesting. The issue you’re running into is a bad culture of PVP where when someone gets ganked, they immediately want to throw a fuss. Instead talking it out with their aggressor.
Believe it or not, but most people aren’t all jerks right off the bat. There’s a few, and you will always remember the few over the quiet and collected majority. But most people, even when they are competitive will sit down and talk and work things out. But you gotta make it interesting. You can’t be boring, and you can’t just whine and beg either.
Even in PVP you can be cooperative with opponents. Even in my example about the ruthlessness in Archeage, I still had friendly banter and chats with members of opposing guilds and even those on the opposing faction. We used to coordinate fights for fun.
The point is, True PVP has consequences. Some are bad, some are good. But you have to play the cards you are dealt. And you should never take any actions as personal. And when dealing with those that do, well… lets just say it doesn’t take much to chase them out.