As long as there is consent from the consumer it is ethical for digital marketing professionals to have access to cookiedata.
Individuals/consumers also have the option to deny the company to monitor their every move on the site, or the individual/consumer could open an ‘Incognito’ browser.
In my opinion, the individual/consumer will most likely benefit from granting the company access to monitoring cookie data. Allowing companies to understand your behavior will allow your search for products to be a lot easier. Your online experience would almost be customized and aligned with your interests, wants, and needs.
I agree that a company should be able to track and analyze consumer behavior to an extent. It is only ethical as long as the consumer knows that their clicks and searches will be monitored and analyzed.