This thread is not necessarily impure. It's a question of moral theology. It could be impure for some, and not for others. If you need to avoid it, you should, and you had the opportunity.
.
I think much of America's obsession with sɛҳuąƖity is the puritanical avoidance of discussing it, when necessary. There is such a thing as a healthy, catholic, moral way to discuss martial relations. It's part of life; God created it. What we have in America (which they don't have in Europe or S. America...which are both more Catholic than us)...is avoidance of the issue altogether. One extreme leads to the other. There must be balance in both areas, and America has neither.