Why do we still allow fracking?
Because people want to drive cars, fly on airplanes, make use of advanced materials, and have goods shipped across the world to their doorstep in a week among other things.
The oil industry exists because people want the quality of life the use of oil enables them to have. Until we have just as cost effective alternatives to all the things the use of oil lets us have it will continue to exist.
Another poster uses Erie, CO as an example how the oil industry are bad actors. The poster fails to mention Erie is a bedroom community full of people living in big new suburban houses and driving their vehicle (very likely an SUV) into Denver for work everyday