I strongly believe the analytic/synthetic dichotomy is a false one. There is no such thing as a concept that comes pre-formed in the mind, without any reference to reality.

Kant used the analytic/synthetic dichotomy as part of his attempt to "destroy" reason. No, this isn't the same as a religionist's call to faith, but it has the same implications.

I am familiar with the categorical imperative, but it's not directly related to the discussion at hand. Yes, Kant is also very famous for that, and I also disagree with that (as does most everyone, probably even yourself :-) ).