Your equation could also read: conservatism = enforced standards = punishing dissent = iron fisted tyrant = totalitarianism = bloodbath. Or as I have already heard leftist say conservatism = Taliban.
With the exception of a few regular posters on this site I would disagree that the conservative mindset is equivalent to the Taliban and I also disagree with your premise that libertarianism = no widely agreed upon and enforced moral standards. Laws against murder, assault, theft, fraud, trespassing etc. though limited still cover a lot of turf, enough to keep a society functional and civilized - especially a "multi-cultural" society. The wider universally held moral principles that you might believe in are only practical in a homogenous society or in a small tribe or clan because outside of those confines there is no agreement. The US is no longer homogenous. Furthermore the socialistic system we live under makes society less civil. As the reach of government grows the more it pits peoples against each other as they vie for official recognition, tax subsidized hand outs and advantage over other groups. Your argument is with leftist promoted social decay and with big government yet you see it as the fault of liberty and you fear liberty as you see it further unleashing this decay but fail to see how limiting government limits the power of the left, hence libertarianism solves the problems against which you rail.