@Dasein,
Could it not be argued that you, Dasein, are what Heidegger called "inauthentic"? All you seem to do is perpetuate the contents of "Being and Time", without actually questioning its meaning.
It’s ironic, given that you've read that book, but yet fail to actually apply the ideas and instead just regurgitate them, but also quite typical I suppose, because, as Heidegger also said..."Dasein is prone to error".