that's quite a sweeping remarks you've made there, kiddo..
placing a broad umbrella blanket on the entire industry without understanding it is like a blind fool feeling up an elephant and describing it as a banana tree, for instance..

what you see/hear/feel so far about MLM is crap... but this does not represent that ALL MLM are crap..
there're certain business framework you need to understand before you start crapping the entire industry out..