Rep. Alexandria Ocasio-Cortez said the shooting ignited a "mass bubbling of resentment around the precarity that people have been living with."Tom Williams/CQ-Roll Call via Getty ImagesThe UHC CEO killing has led to an outpouring of frustration toward the healthcare industry.Some progressive Democrats on Capitol Hill say it's the "right time" to talk about it."I think for people who are surprised, it's a wake-up call," said Rep.