boycott the 12 clubs, boycott their sponsors. do it TODAY

main sponsors: Emirates, Plus500, 3, Rakuten, pirelli, jeep, standard chartered, Etihad, Chevrolet, AIA

boycott them all

will it make enough difference? probably not, as has been said there are millions of fans in other countries who will make up the difference.
I will be doing it though, at least I'll know I tried