Swimming in a relativistic culture as we do, it's easy to see why the number of American missionaries is declining. Why force your beliefs on someone of another culture? Why the paternalism? Haven't Americans already done enough damage around the world? OK, we'll grant you the need for social justice, but not traditional missionaries. Isn't it time that we let nations sort out their own problems?

This video as good a response as I've seen. And perhaps you can list a few responses of your own to the critics. Why should we do missions?