what you mean by "trouble."
Periphrase for setting a moral boundary beyond which a tendency is to be considered "wrong", to avoid repeating the phrase "draw a line" excessively. Again, I got the idea that you had a moral structure and felt it was immoral to interfere with another culture's practices, I wanted to see where that standard would yield to other moral standards as the cultural practices became more extreme. In that sense I misunderstood you completely, you aren't asserting the morality of leaving other cultures alone at all. You just prefer not to do it for some reason, you might give me more information about what that reason is if you want to be helpful.
Why do you feel that a culture defining meaning, value, and rights at the level of the individual is superior than others
I did try to cover that though, the reason I think such a culture is "better" in the practical sense is because it results in superior firepower and lower infant mortality. In the personal sense though, I may favor that view because I enjoy the freedoms I have and did not appreciate the lesser amount of freedom I have experienced as a guest in cultures with a lower emphasis on the individual like Kuwait and Somalia.
It may just be because I have been trained since birth by my culture to deem it superior to other cultures, and superior to the degree that it results in personal freedom for me. That's a fairly easy concept to "prove" to a small child, whether it is true or not.
more apt uses of the word "barbaric"
Literally "foreign" but with an implication of greater suffering, more primitive conditions, signicantly less even utilization of resources, greater academic ignorance and a more arbitrary legal system. Normally implies a tribal system like that characterizing the Germanic peoples who took Rome and/or a feudal system like that set up by them thereafterward as they ceased to be migratory. The word used to characterize "us" when we were like "they" are now.
Applied by me to the modern pseudo-socialist super-states as well because I characterize the results as the same. Feel free to correct me on this point or any other point where you may be able to make me smarter.