There are a lot of missionaries at work in the US and that is as it should be. I would agree with you that the general reception is a negative one. I would also agree with someone who says that often a missionary doesn't do a good job presenting the Gospel and so does more harm.
But, if you genuinely believed that you had the resolution to the absolute worst problems besetting mankind, wouldn't you do whatever you could to make it available to others? Wouldn't you at least give them a chance to accept or reject it for themselves instead of deciding for them that they can't have that solution?
Christians do believe that Jesus is the only path to God. Since we genuinely believe that, our desire to offer it to others is the impetus for missions. But it is impossible to force Christianity on someone. A patina of Christianity could be forced, overlaid on top of someone's actions. But real conversion cannot be forced.
Ha ha ha ha ha ha. You are surely kidding!!
http://news.bbc.co.uk/2/hi/south_asia/758342.stm
http://www.hindustantimes.com/news/181_1726761,0006.htm
"A patina of Christianity could be forced, overlaid on top of someone's actions. But real conversion cannot be forced."
You are very much mistaken. Much of the Christianity in Africa, Latin America, Goa and large parts of Asia was the result of brutal inquisition involving murder, genocide, pogrom, rape, torture and slavery.