The designs are extremely dated, the build quality issues are still there, the other companies have either caught up or surpassed them in technology, and Elon Musk went from being a successful con man (2017: FSD could ship right now!) to the worst brand ambassador the world has ever seen.
He made sure that he is seen as the personification of his companies like no one else, and that turns out to be a bad idea when you pull a Musk.