David Chalmers discusses this particular passage by Searle extensively in his paper “Absent Qualia, Fading Qualia, Dancing Qualia”: http://consc.net/papers/qualia.html
He demonstrates very convincingly that Searle’s view is incoherent except under the assumption of strong dualism, using an argument based on more or less the same basic idea as your objection.
David Chalmers discusses this particular passage by Searle extensively in his paper “Absent Qualia, Fading Qualia, Dancing Qualia”:
http://consc.net/papers/qualia.html
He demonstrates very convincingly that Searle’s view is incoherent except under the assumption of strong dualism, using an argument based on more or less the same basic idea as your objection.