Do you really think the tiny handful of Liberals willing to commit homicide against people they know personally for the sake of putting a slightly less awful POTUS in office is big enough to swing even the tightest of elections? Especially when you take the electoral college into consideration...
This is worse than advocating adventurism, this is Lib adventurism.
Tarn Adams of Dwarf Fortress fame made a wonderful little game about lib adventurism called Liberal Crime Squad. It's like if you ported the energy of the 1800s Russian Narodniks onto the early 2000s Bush era liberal