I like to think of it the other way round --- look how good his books are despite some of his frankly appalling opinions.
That said, and while I like _Ender's Game_ a great deal and think it's an excellent book, I did find an analysis once about how fundamentally it's about how fear and violence are the only appropriate actions when faced with the unknown; Ender may be sorry for what he did afterwards... but that's afterwards. Unfortunately there are so many half-baked essays about the book online I've been unable to find this again.
Do go and read Haldeman's _The Forever War_ as a counter to it, though. (It's also an excellent book.)
Have you read the sequels? The Speaker for the Dead branch of the sequels; Ender goes on to do more than just feel sorry for the Formics, and other intelligences that humanity discovers. Arguably, he more than makes amends for the mistakes he and the rest of humanity make.
That said, and while I like _Ender's Game_ a great deal and think it's an excellent book, I did find an analysis once about how fundamentally it's about how fear and violence are the only appropriate actions when faced with the unknown; Ender may be sorry for what he did afterwards... but that's afterwards. Unfortunately there are so many half-baked essays about the book online I've been unable to find this again.
Do go and read Haldeman's _The Forever War_ as a counter to it, though. (It's also an excellent book.)