When your CONSTANT attention-seeking "unfavorable" shenanigans overshadow the music, people get turned off. The poor album sales are a surprise to no one.
Dear dude. Maybe it's as simple as, people just don't like you or that stuff you call music. Maybe sales were better in the beginning because people were interested in that nepotism baby running around mostly naked. Well that "shock value" has worn off and people have discovered that behind the show there was no talent.