Ford Motor Company Project Manager interview questions

Submitted the resume on Ford careers, received an assesment after couple of weeks, and later after 2 weeks received an email from HR to schedule a call for HR screening, and later after 2 weeks received an email to schedule a call with Hiring manager, webex call was scheduled with 2 managers (Hiring and another manager). Hiring manager was very rude, he hurted my feeling and treated me as an illitrate or showed too much attitude towards me, I felt very uncomfortable and I couldn't answer the questions properly even when I knew the answers. I think this kind of people just builds years on their resume, not the behaior. Second manager was ok, he is just taking the notes when I am speaking. I am not sure why even people conduct the interviews and hurt others feeling, If they do not like the candidate they can simply reject them at the end. I would recommend this kind of people should learn how to treat others or stop talking to people, It just discorage someone.