I'd settle for traders deleted if we get to keep our levels n' tokens and reroll, because it would set a precedent.
The pvp whining would drop considerably besides the hardcore forum trolls who spend 10 times as many hours on forums than ingame, most people would realize that everything even remotely fun in the game would be gone in a matter of weeks. And they would finally shut up.
Losing the trader profession for that would be worth it.
FC would love to, you all really have no idea how much not having wrangles in the game would let them continue The Vision™ so they can perfectly tweak which profession can use what where and when.
When an enemy invades your land with a collum of tanks, the first thing you do is blow the bridges in front of them. (or when they start crossing if you can)