The Achilles heel of modern humanity is its spiritual weakness, which threatens to devalue the content and meaning of universal human values on the path to global solidarity - moral, cultural, and political, which ultimately can lead to a global catastrophe.
Separating ethics from philosophy to form an independent discipline is impractical, as it's impossible to develop rational and productive moral norms outside of the sections of philosophy closely associated with issues of worldview.
Humble acceptance of death from old age — logical and correct, for today there is no solution to significant longevity or beyond. It may well be possible in the future, but today we are at this stage of social evolution and we have what we have. Therefore, there should be no sorrow, only peaceful acceptance. Being realistic is important for a fulfilling and dignified life.
Is it important to possess a comprehensive knowledge about the real picture of the world? If so, how can one acquire it to avoid a prolonged existential crisis, and how can it be converted into a source of self-development, love for life, and productivity?
An irrational worldview — comfortable. There is a desire to stay in this comfort, yet reality is far more complex and being unprepared for its demands is a source of danger, and accordingly, of misfortune and suffering.