ames – that is not the type of question that can be answered in a blurb. You would need to know a lot about the R’ S. Hirch and his Torah Im Derech Eretz ideology as background. You would also need to know about the founders of the TUM philosophy and the goals they had in mind. A firm understanding of the historical periods is necessary. We’re talking about an extensive research project, not a casual dinner conversation.
Pay no attention to one line responses that make you think, “Well, that’s not so bad”. A short answer can only misrepresent the subject matter.