Why should organizations be allowed to promote offensive, violent, sexual, or unhealthy products that can be legally sold and purchased?

Organizations should be allowed to promote offensive, violent, sexual or unhealthy products that can be legally sold and purchased because they are legal. Although many people do not like to see promotions for these companies, they are completely legal so trying to persuade someone to try the product based on the sales tactics, is not forcing them. There are many advertisments that may not appeal to each person who sees them but that's okay, if they are legal, they are allowed to be advertised.