Due to lack of time, I have not read all of the postings on this thread, so I've lost track of who said what. Mammals as a factor in dinosaur extinction has not been summarily dismissed. What seems to be missing here is a sense of the history of the debate. Of course, this outcome has, in fact, followed more than a century of discussion, and nothing new has been brought up to justify reopening the debate.
Careers are short, and it's time to move on to something new.