demarketing
noun [ U ]
uk/ˌdiːˈmɑːkɪtɪŋ/ us MARKETING
the fact of marketing a product or service less, or of making a product or service seem less worth buying:
The demarketing of tobacco through government policies is common in many developed countries.
By understanding which customers merit demarketing, a company can focus its efforts on the “right customers” and increase its profitability.