I'm a lot older then you stupid. What does age have anything to do with have the common sense to understand that someone will not be torn between making a choice to join a group just to take control of that group.
The name of the book is MEIN Kampf...
MY struggle. It is not about other people. It is about HIM. It is NOT about Hitler joining up with, prescribing to, being subservient to, or assimilating OTHER people's views or beliefs. It is the opposite. In his mind, HE HAS the answers. And the book is a blueprint that spells out HIS intentions, HIS aspirations, and the conscription HE will apply TO other people.
Hitler never plans to join up, he plans to take over. He alludes to it in the very chapter YOU posted. But you don't read to LEARN Hitler's beliefs. You read looking for snippets of paragraphs, sentences and words you can take out of context, hack up and use it to promote YOUR preconceived beliefs.
Hitler is not a socialist. He doesn't believe in inclusiveness, he believes in exclusiveness and exclusion. A 'you are with us or against us' attitude for those he would include. People who must first pass a purity test and a then pledge undying subservience and loyalty to HIS state. For the people he will exclude, there is no membership option. They already fail his purity test. They are of the wrong religion, ancestry, sexual orientation or IQ level. Those to be excluded will be eliminated.