The cost of employer health insurance has skyrocketed, and workers are picking up some of that growing tab. Amid employees’ grumbling, employers are loath to push more of the cost onto their workers. That’s why the consensus view among major employers, expressed in a recent survey, sounded like a cry for help. Calling rising insurance costs “unsustainable,” the vast majority said they need help from the government either to provide alternative forms of coverage or control health care and prescription costs. Employers “have reached their limit,” said Elizabeth Mitchell, chief executive of the Purchaser Business Group on Health, an employer advocacy organization that collaborated with the Kaiser Family Foundation on the survey. Employers, she said, “are tired of pouring tons…