> The trouble with functional programming is functional programmers
This hilariously works for a lot of things. Biggest trouble with legalization of drugs is the drug use of the ones that love to talk about why it should be legal. Biggest trouble of prohibition policies are the people that love going on about why they are better for not drinking.
I assert that this is, essentially, "The trouble with THING is the group of people that think THING is a panacea at what it does."