I don't think Ripper was LeMay. On the other hand, Turgidson wasn't far off LeMay's deputy and successor, Tommy Power.
Strangelove was based on the plot of a British novel, Red Alert, by Peter George. The book Fail-Safe was so similar that George sued for plagiarism (it was settled out of court) - which explains why the movies are so alike.
It's always a good sign when you can use the phrase "mutiny of preverts" and the other person gets it.