Mitigation, the REAL problem. Also, operatives need a 2x dmg multiplier.

Sir... that is how it is in every game. I am not missing the point, you are. I have stated this over and over again starting in the pages halfway back down the thread.

You are calculating mitigation. Not damage. Damage can be calculated upward freely, it climbs ever higher in every single MMO. Mitigation always climbs slower, and always has a less of an initial effect, because mitigation has a stronger growth curve with greater returns when compounded with healing. Tanks are utterly useless without their healers, it is a symbiotic relationship that affects your mitigation calculations. You fail to understand how mitigation scales rapidly with healing, or even that healing exists at all, and thus you fail to appreciate or even comprehend how small gains in defense, however tiny you perceive them to be, result in substantial gains to survival. There is no point in discussing this with you further.

Going from a hypothetical 98% damage reduction to 99% damage reduction is only a small gain to people who cannot understand math, yet I see similar ignorance flourishing in this very thread. My colleague was right -- it is futile to try to explain this to any of you.

As for tanking stats affecting only certain classes... welcome to MMOs, you must be new. Were this World of Warcraft, EverQuest, Lotro, DDO, or some other, not even your armor would save you from a lightning bolt, much less your shields. Tanking armor/shields are never meant to stop every attack, and that holds true in the vast majority of MMOs. If it has a wizard in it, odds are he ignores armor and shields and attacks you like a squishy. It's called balance. Mages kill Tanks.

You still pick the Tank gear if you're aiming to be a premade. Sacrificing tank gear for the DPS is like DPS sacrificing DPS for extra Tanking power. It's nice for solo queues and has a large effect because you are spreading out your character's focus, but it just doesn't work in premades. Seriously, it's the same effect you get when a tank equips a 2-handed sword... he's gonna do a lot more damage and still have tons of survivability! But when you end up facing a REAL premade with a REAL tank and REAL DPS and when each player performs their job... they light your team up like a christmas tree.

Just as a side note...

Tanks are actually lucky in PvP in this game compared to most.

In most MMO games, there's an assortment of magic/caster classes (or equivalent) that bypass nearly everything that makes a tank durable. Essentially, all they are left with is a bigger HP bar to stay alive.

In this game, even the roughly magic damage equivalent type classes have the vast majority of their abilities fully affected by ARMOR. So, here tanks get to keep their HP and Armor. Also, they get to have their taunt and guard functions actually be highly useful in PvP.

The two bolded above use Rage as their PvP DPS spec, hence rely mostly on Force Attacks, i.e. Yellow damage. The white damage they do is largely just rage building.

Not really, most dps trees have armor reducing or ignoring stuff for all the hard hitters that could potentially be severely reduced by armor, flechette round, infiltration tactics, grav round, armor piercing cell etc.
This alone would not be that bad but coupled with all the abilities that flat out ignore armor reduces the importance and usefulness of armor quite a lot.

We've both posted numbers for various classes in this thread.

one freaking page ago I posted a crapload of abilities (44 total for Emp side) affected by shields

Even with a Focus/Rage spec, they still deal a large portion of their overall damage through the white combat table. Fighting against a tank will significantly reduce their damage output.

Also, any of the other specs are very heavy in white damage.

Also...where armor is "reduced"...you're still getting the benefit of armor and an advantage over non-tanks.

Would be nice to see some official answer what they are planning to the tank stats or gear in pvp or should I just reroll to a dps class.

I reiterate that this is another logical fallacy... you're propagating a truth without regard for its intention, to set an even stage for an experiment. Before that can be accomplished, both sides must be even... that is, a player with insufficient skill in no way can begin to understand how the mechanics operate under the appropriate conditions for the experiment. To such a player, negativity abounds even if the answer is looking him straight in the eye. The player lacks skill, and skill boils down to one thing -- the ability to think critically. The experiment becomes a sham. One cannot assume equally skilled players in a game mechanic discussion because often the ones making the complaints are unfit to be analyzing the dilemma!