It is useful. I referred to the use I make of the preamble to the Official Languages Act. It expresses the spirit of the act. I have not heard anyone ask to have the preamble struck. It is practical, and I consider it useful.
I am being a bit vague because I do not understand the nature of this debate since the preamble expresses the purpose of the bill. However, if you have fundamental reasons to believe that it undermines acceptance of the bill, I am prepared to hear arguments on that point. I have not yet heard any.