From NuclearTBag:
The reason why christians are considered offensive in this culture for forcing their views on others, because they are the only ones doing it.
Are they the only ones doing it?

I have to disagree with that. What I do see are Christians reacting (thank you, Lord!) to continued removal of anything even remotely related to God. Others may not be coming right out and condemning Christianity but they do work hard, in more subtly ways at times, to proclaim (force!

) their agenda. Our nation in the past decade has seen an unpresidented removal of anything Godly.
and more...
When was the last time you saw an atheist protesting a cathloic church, holding up doctored photos of a preist molesting an alter boy, you don't see that sort of thing.
Good point!

Sad to say, but today's church has much to answer for and has in many ways become as corrupt as the world. The church doesn't need to be condemned it is self-condemning. But this brings up the difference in those who profess Christ as their Savior and those who simply "play" church. Sadly those outside of the Body of Christ cannot see the dividing lines. Sadly those outside of the Body of Christ look at any who tack "Christian" before their group and sadly we all stand condemned.
From otseng:
Odds are even that the person wearing that t-shirt is not even a Christian. This is after all a "pop fashion". Just like if someone wears a crucifix, it doesn't mean that person believes in Jesus as her savior.
Re-reading your question makes me wonder if I missed the point you were making and went off on a tangent! Sorry if that is the case!!

It would seem that you are refering to those who wear "Christian" symbolic items while holding no real belief system, or at least none that would reflect Christian views. More on target now?
When I see this I am filled with great sorrow. Not something easily explained. I wonder what really goes on in someones head when they take what is sacred and make it trivial by creating it into a fashion statement. I am sad because there is so much more and they are missing it. They are lost in impressing others while blinded by the only One worth impressing. And I wonder what our Lord thinks of that. Do you? How does He view the "popularizing" of what is precious to Him...