The viewpoint gathered from the passage is:
Sarah’s determination to hide with her brother rather than wait for the Germans is admirable.
Step-by-step explanation:
Sarah begins the passage by wondering if the brother is going to sit there and let the Germans take him away and then says that surely she would not let that happen.
This is the line that sets up the passage for what is to be narrated for the whole passage which is her plans and her determination to save her brother from sure death in the German death camps.
It is her foresight that has allowed her to understand what is going to happen and she willingly takes steps to avoid it.