Even at face value, Kouchakoff experiments not an argument against cooked food when some raw foods are also eaten. However, for the sake of discussion, let's look at the Kouchakoff experiments upon which the raw- foodist claims are based. That even water was said to have a critical temperature suggests experimental errors involved. This, of course, strongly suggests Kouchakoff's experiment may have had systematic experimental errors and thus raises considerable doubt about the validity of the results in general. That is, such assertions are simply speculation.
Leukocytosis can occur under normal conditions of health.
No one will say that exercising is bad because of the subsequent leukocytosis. The mechanism underlying this phenomenon and its physiological implications are not known. Additional Kouchakoff article includes dietary advice for avoiding leukocytosis that includes cooked as well as raw foods. As seen below, the recommended diet is not even predominantly raw, and foods such as grilled meat, bread, coffee, and salt are not prohibited. Here is, along with their preparation method, a short list of the main foods we can use without risk of inducing digestive leukocytosis.