Then I can only reiterate, as one playing on Tactical, that this is your problem.
Not really. A lot of people like the original poster noticed the difficulty to "properly" tank in the game. There are already many topics on the forum like the ones saying that taunt should bypass the physical armor or the need to add the reverse stench skill, etc...
All those thoughts are born from the same initial observation : "Tanking is not as efficient as other playstyles".
Some other users suggested a talent with "reversed" stench effect, or that would increase the likelyhood of enemis targeting the character, that wouldn't be a bad idea.