45k is overkill, and you're gimping yourself stacking all that raw health. I run polarity field and menacing strike, usually with Polarity T5 and Menacing T8, no atomic spear, no Jolt, and I don't lose agro. Why? Because I have nearly 1400 support power. The fact that I have 40k hp and only 12.2k armor is far outweighed by the fact I don't have to overstack my bar with agro generation and I can comfortably bring powerlink to the party. I've yet to see a single encounter where my surviability is in the top three of the list of problems. Being able to provide 3 interrupts and power link while still having a mobility slot on my bar is far more valuable to me than 15% more effective hp would ever be. Anything that truly hits hard in this game you can and probably should be interrupting/avoiding, and if you need 45k hp then you're healing or interrupting is the problem.
TL
R - if you are a warrior and you aren't bringing max interrupts and power link to the party, you're doing it wrong, no matter what role you are playing. They are the single greatest advantage we bring to the table, along with defense grid. The secret to this game is abusing the shit out of the moment of opportunity mechanic. Everything else is secondary. Practically every boss in the game has a mobility/survival phase and a "ZOMG KILL IT" phase, and the thing we do best is make those dps phases happen more often and with greater potency. Right now we just need some raw number tweaks and stalkers to get the nerfhammer and we will be absolutely fine.