Morgan Stanley Senior Developer interview questions

Interviewer: Whats the async await using in the background Me: Callbacks Interviewer : no they are not Interviewer : you seem to be not as senior as we need Me: I am senior and I know C# very well .. Interviewer: Some other questions which has little importance on C#.. Overall instead of listening my answers and accepting he interrupted me and made incorrect statements about the topic to falsify my skills's match I guess from the beginning he wanted to disqualify me because he knew very well how inferior their education is compared to mine I cant say I didnt feel discriminated But Trump will make you see facts

Was for Scala development Role. Two telephonic rounds got rejected in the 2nd. 1st interview was DSA and SCALA 2nd Interview DSA, Class Diagram, Design and SCALA Had a bad experience in the 2nd round. It felt the interviewer was inexperienced, focussed too much on Class Diagram without a clear explanation. I was not able to solve that, but everything else went super well. Still got rejected