Something about this paragraph strikes me as very wrong, and I'll try to articulate why:
I would consider my values as part of my identity, and yet I'd like to think I can engage with someone else in a clear discussion that involves my values. I may have strong opinions about something, but that doesn't mean I'm unable to think clearly about it. I might even change my mind slightly about some thing or introduce nuance into an otherwise-strong opinion as a result of this discussion.
Furthermore, if values are part of one's identity, is Paul advocating that one should reduce one's set of values? This seems negative and possibly even dangerous.