Yeah I feel the same way. It's just that dude's work has gotten increasingly overtly right wing in his old age. I still like reading his books but it's gotten a bit off-putting.
His libertarians views were always present in his work, but it was more thinly veiled and subtle. Like for instance, the protagonist would be up against a shadowy quasi-legal government entity that would break peoples' constitutional rights with illegal searches, detainments, etc. It would have clear political subtexts without being preachy.
In recent years, a lot of his shyt has started to read like it came from an educated angry old teabagger with more overt propaganda, more pro-religious messages, and this overall tone of how the greatness of western civilization is under attack on some Odyssey/Michael Savage shyt.
He had one book where this brilliant black genius mathematician had been working with the government on some secret discovery involving a new animal species, and the big reveal was that the government and scientific community are having a paradigm shift on the origins of life because it's clear that evolution is not mathematically possible.
A few scientists wrote articles shytting on it after it came out. I don't know how someone that smart can be that dumb. He also had another book back in like 2005 or so where some character went on a spiel about how global warming is a conspiracy by climate scientists.
That was the point where his books started to go from thinly veiled libertarian messages to having elements of right wing and religious propaganda that wasn't really veiled at all. Now a lot of his books where the antagonists are evil sociopaths who are in some way trying to control society in order to "progress" it, with the anti-Marx/anti-progressive themes being about as subtle as an Oliver Stone movie.
now i know why my venture capitalist uncle loves Dean Koontz. Any of his shyt I should read? I'm not averse to some easily digestible scifi.
I will say that being in school has murdered my thirst for reading recreationally.