Why does everyone blame the tank?

[AngelicSence]

Let me tell you a story. I'm currently farming Zodiac weapon final upgrade as of patch 2.25, called Animus. In order to get that weapon, I have to run every low level dungeons. So.. Just 2 days ago, I was in vigil party (level 41 dungeon). There was a tank lv43, equipped with lv20 gear. He couldn't tank at all. Issue was that he can't keep aggro and I had to heal everyone in my group.. It was intense, but we made it there. Before that happened, I had to go through all the drama. I said this to a tank "do you use flash? If you are new, don't afraid to ask me" his reply was "Sh"" up and do your job". I had no choice, but to abandon the dungeon before things escalate badly. but that motion was denied... What could I do. For the sake of others, I decided to stay and help. Every time our tank ran into group of mobs, instead of using flash he shouted "graaaaajdjfldhkd". I said him to focus, but I got blamed from other memeber, dps (archer) -- she said, I'm a dumb healer". Does that make sense to you?. I think it was worst experience I ever had in any MMOs. So, my point is.. Don't listen to others. People can only give advice. Don't let them fool you. It's just not right. You should be respected and not thrown away.