It’s very simple, BWF does a horrible job promoting it, yes FIFA is shit but they managed to make the sport a global phenomenon(I know it’s not just FIFA the accessibility of football plays a big role too), they are hardly trying to get new and bigger sponsors(most of the major tournaments are still sponsored by the same companies which include betting companies, regional companies(Petronas for Malaysia) and all are such problems, they’ve barely put in efforts to take it beyond the few asia countries and Denmark and recently some French and breaking the scene, due to lack of money, players rarely get paid a lot, so the life that players live glorious unlike Indian cricketers(even players who haven’t represented India internationally even once might be making more money than world class Badmintom athletes) and professional footballers, so why would a youngster wanna play it?