Here are some examples that might help (without resorting to using "lack of", though that can certainly work too!).
Supporting child pornography
Supporting your husband's choice to quit his job and go into acting (even when he sucks)
The overprotective parent who's always helping their kid through the playground obstacles. "Let me do it myself!"
Answering a distress call which is really an enemy trick to draw you out
Taking time to organize your closet perfectly after getting dressed -- which makes you late for your interview
Structuring your database design to the Nth degree which makes it almost impossible to work with
EDIT: although the above examples make it easy to see how the element could be made problematic, anything can be made into a problem. For example, "supporting world peace" could be a problem if a character is so obsessed with that he neglects his family, etc.
Also keep in mind you have to actually make each item a problem. "Supporting child pornography" sounds awful but it's not really a problem until you make it a problem for the character (hiding things from people causes angst or trouble at home/work, etc., and now I need to stop using that example now because it's making me sick to the stomach).