Amazon Senior Manager interview questions

Interview process was very lengthy and at times interviewers were very hostile. I had applied for a manager position. A recruiter contacted me and set up a phone screen. The person interviewing told me that I have lot more experience than the position requires and if I would be interested in senior manager role in another group. I agreed to that so he set up another phone screen. When that went well, I was asked to come for on site interview and before that I had to submit answers to some written questions . The in-person interview lasted almost till 4 PM from morning 9 AM. To my surprise some of the interviewers were not very technical developers but more of lab manager types and didn't have as deep technical knowledge to understand or appreciate the work I had done in the past. All most all of them asked very similar questions. In one case two interviewers came to interview me at the same time and one of them was very intentionally hostile to me and another was rather calm. This was very surprising to me because I have nearly 30 years of industry experience and lot of that at a senior management or executive level. I have interviewed many people in the past and have seen or heard others interview candidates but never saw or heard any company treat potential candidates in hostile way like Amazon does. I can understand if someone disagrees with my views of the management style or past decisions I took etc but there is no way I am going to insult anyone during interview process because I disagreed with their management philosophy or decision making. It shows this is a very bad company to work for