Tyler’s speech indicates severe narcissism: the things he believes he’s “lost,” like control over his sister, are things to which he’s never been entitled. He also displays a marked lack of empathy; dismissing everyone around him as enjoying “perfect lives,” he ignores the fact that everyone is dealing with issues that are as valid as his own. His words here underscore the broader social context that has led to Tyler’s decision to turn to violence, as well as his twisted interpretation of that context.