See, that is a problem. Globalization is simply a threat in itself. It is right that the US represents that, but therefore it represents a vital threat to the existing nations, more damaging than terrorism. It is even a threat to the United States, not that we as a nation recognize it.
I would support expansion of Christian culture, but expansion of Western liberal culture is also not a welcome thing in most of the world, and for a good reason. When you say "Western liberal culture" you probably mean tolerance of opposite views, pluralistic society, representative government. That is what it means in the Christian context; as we lose Christianity as the rule of life, these become empty slogans; to non-Christian nations they ar simply meaningless. To the world outside of the US and Europe, western liberalism means destruction of traditional way of life, introduction of public vice, civil war, corrupt factional governments serving foreign interests. Naturally, the nations of the world resist that.
If we simply defended our turf, like retaliating for attacks on us, everyone would understand. If we had a moral society where people had superior ethical values (for example, had stable families raising chaste children), and wanted to teach others how to achieve that, again many would understand. But we took on that role of a cultural and political crusader, whereas secular liberal culture that we have -- as opposed to Christian culture -- is not attractive to many for many good reasons.
Western ideas of political and economic organization, a rule of law are inherently an EXISTENTIAL threat to the entire power structure of these societies, and the power brokers in these places know this. That's why as long as they could they tried to keep Western influences out, which is impossible in the day and age of Internet, cell phone, satellite TV, global trade, jet air travel and a decline of the physical restrictions to movement in a post Cold War era. Ironically, what makes the threat of terrorism greater to the free Western nations is also the same framework of conditions that threatens the despot in the Middle East and North Africa.
What you are witnessing in North Africa and the Middle East today is another example of the domino theory: http://en.wikipedia.org/wiki/Domino_theory (Although the write up in Wikipedia doesn't do it justice - but it makes the general point)
Let's say the US had not massively come in to help Germany, abandoned Berlin and W. Germany had imploded. What is the probability that the Netherlands, Belgium, Luxembourg, Austria would have gone too? High. Likewise, after we abandoned Vietnam, what happened in Laos and Cambodia, and eventually was stopped at the borders of Thailand?
These sort of things can best be looked at as waves that sweep a region. A friend and I literally predicted what is happening today as soon as the government in Tunisia toppled and before Egypt, Libya, Syria, Bahrain, Yemen, etc were in the news. You normally have some precipitating event......... and all the rest is history. I wish I could pick lottery numbers that well. lol
What you address I agree with, the modern Western culture is one of nihilism, hedonism, it's savage, crude, short sighted, ignorant.... whatever you want to use to describe it. Everyone points the finger at the other, blaming him and talking about how he's even lower than oneself, but in reality Western society as a whole is in decline and can best be described as a cesspool. But that's not what I meant. I meant as you properly assumed the more traditional meaning of the concept of what the world “liberal” really meant before it was perverted. Realize, Capitalism is in all reality amoral. It's neither good nor bad, it's simply what people make of it. You can spend the money in your pocket to help someone or buy some booze and a whore. But Capitalism is the ONLY economic organization/process that truly allows for freedom and liberty in a society. Unfortunelty, as you correctly point out, a society without righteous values and morals buys the booze and whores.