Yea, that would even make sense for it to start then. Think about it, in the late 60s there was a lot of tumult in society, such as calls for change in the government, the opposition to the wars, ending racial segregation in America, the sexual revolution and the whole hippie thing about peace and love and accept everyone.  That must of been some tiny niche group (since nobody in the 60s nobody was really fat) who decided to jump on the coat tails of real segregation and discrimination. It probably stayed tiny and more or less unnoticed until the 90s when the population started getting huge, along with this wave of overy p.c. bullshit-type rhetoric you see everywhere. So again, they have a great platform to jump on (even though they won't be doing much of that ( ͡° ͜ʖ ͡°) ).