We now have MMA which may or may not result in higher health problems in the long term for participants (boxing involves exclusive blunt trauma so possibly leads to the highest issues) but definitely would produce more immediate injuries/conditions resulting from the fighting.

Were boxing to be banned, I would think MMA would have to be banned first.

My opinion is boxing is still the most popular of all the fighting sports, even in America and especially worldwide and has the most Western heritage. It is immensely popular with the new age health revolution and generates billions of dollars annually.

Boxing is never going anywhere. Combat sports are the most purest form of direct competition and boxing is the one which requires the fastest reflexes, timing and swiftness of all of them. It is a part of human nature to enjoy it and be interested in it, no matter the risks for society and individuals.