Hey Persevero...of course, Christians believe that they are saving souls by sending out missionaries and should do so, despite the fact that I think accepting Christianity is a wrong turn from the truth of G-d...being a Noachide, however, I hope Christianity in the long term will turn back to its roots and all people will find the Torah once again...magritte
It just seems that if you believe that there are many roads to God, there is no point to sending missionaries out. Why bother?
But it seems from your response you think the way of salvation is following the Torah.