These missionaries don't come in with an army. Its more often small families or a couple of individual vs entire villages of natives and the "conversion" is done via talking, persistence and kindness rather than by force.

> Remote populations aren't global idea consumers at the internet-accessible global ideas mart.

Shouldn't that be a good thing according to your logic? Its not like the global ideas mart is less different from their own society than what the missionaries bring and it would be quite presumptuous to say that your beliefs or those that you consider "global ideas" are better for as yet untouched tribes than those of christian missionaries.