Is this really the case the though? Isn't the whole point of tenure (or a big selling point at least) insulating academics from capricious firings?
The big question I have is that there are names on these fraudulent papers, so why are these people still employed? If you generate fictitious data to get published, you should lose any research or teaching job you have, and have to work at McDonald's or a warehouse for the rest of your life. There are plenty of people who want to be professors that we can eliminate the ones who will lie while doing it without losing much (perhaps anything). If your job was funded by taxpayer funds there should be criminal charges associated with willfully and knowingly fabricating data, results, or methods. At that point you're literally lying in order to steal taxpayer funds, it's no different than a city manager embezzling or grabbing a stack of $20 bills out of the cash register.