RMH,
Please never make the mistake of thinking that people on the Left are weak. They are determined and dangerous just as are all groups that have an unwavering belief in their world view and no such belief in the right of others to believe otherwise. (Does any current group come to mind?)
Remember that Stalin and his merry crew murdered 20 million of their own people in the name of human liberation and workers' rights. Beria, his chief executioner, was a fat, bald, pencil-necked geek who wore glasses an inch thick and was by all accounts a good family man.
Never doubt that many of these people will not hesitate for a second to have you and I shot if they think it's necessary. What's more, most of the "weak" ones you make fun of will stand and cheer while they do it.
Good point. Never underestimate the enemy...