I actually wish I could vote for him instead of against him after reading that.
Its not like hes saying its okay, hes just saying it happens so deal with it.
I don't think he was being too unreasonable. Drunk driving is abhorrent, but it's naive to think that only the most abhorrent people do it, if that makes sense. Based purely on statistics, the vast majority of DUIs aren't caught.
However, just because it's relatively common (or at least more common than you would think looking at DUI statistics) doesn't it isn't a terrible thing to do.