this begs a bigger question: are there cultures worthy of destruction? when we advocate going overseas to go take out the bad guys oppressing women/religious minorities/whatever, we are advocating destroying part of a culture that has elements we don't like. Of course, our justification is that these are barbaric cultures with backwards views etc., and we are protecting the innocent - noble reasons, in other words. I would say there are some cultures that violate the securities and dignities the majority and figureheads of our macro society have collectively decided are our fundamental rights - the question is, is it our duty to replace these institutions with ones more akin to what we want to progress towards overall. Or do we expect ourselves to take a pacifistic, non-interventionist approach and hope these subdivisions of human culture figure out on their own?
this doesn't apply to just nations and the cultures binding those (and larger geopolitical regions) together of course, but even at a more intimate level - car culture, gun culture, etc. This of course opens up other cans of worms, such as whether guns really are the problem causing so many mass shootings, or rather our lack of maturity at the micro and macro levels of our culture to use guns responsibly, with the utmost respect for the fact that these are deadly weapons which can do a lot of serious harm if improperly used. The latter is a frequent argument of the pro-gun lobby - don't blame the tool, blame the person. The problem is that even with changing such cultural attitudes we can't always account for one-off wingnuts flying under the radar and get guns, sometimes much more readily than a license to drive or even a really big sharp knife. The potential for destruction is exponentially more with the popular choice of murder weapon so many spree shooters use than these other two options. With all of these factors involved, we have to be very careful about how we approach the reorganization or dismantling of cultures, lest we incur unexpected consequences.