Weirdly I was going through a Rifts kick for a couple weeks not very long ago, and while going over my Coalition War and Dimensional Outbreak books I had a small epiphany of sorts that is relevant.
Kevin writes a lot of stuff that involves 'don't do this, don't do that', anti-magic and anti mutant militaries everywhere yadda yadda, but the books are full of, well, magic and mutants (Aliens, whatever).
Kevin appears to write from 'tone' or 'feel', not from logical rationality. I can garauntee his games (the ones he runs, or ran) are FULL of all kinds of crazy shit, like the most permissive GM ever, and that there are hardly ever any repercussions for all the negative consequences that supposedly accompany these choices. Its all about the FEELZ of being a wanted rebel against The Man, man. that's one reason why so many books focus on playing the Coalition... if you don't have those how can you play a Coalition Soldier who secretly thinks, hey, Mutants are people to and you know what? Magic CAN be used for good!... if there are good playable rules for the Coalition?
Think of the RIFTS setting as a painted backdrop on a theater stage.
Of course, my other epiphanies (It was a deeply spiritual two weeks, I tells ya) involved realizing that Kevin had been creatively bankrupt for probably 15 or more years and is just going through the motions without any soul (to be very, very brief), and also.... shit, I forgot the third one. Oh well... no, wait, its come back to me... fuck me if he isn't the worlds nerdiest homebody. Sure, he's written dozens of world books, but somehow the center of the universe is Chicago. Prove me wrong.