How to understand that tourism destroys tourism

Tourism destroys tourism? Tourism is a good thing for the benefit of mankind. It can not only bring people good enjoyment and physical and mental health, but also bring rich economic achievements to many places, thus promoting economic development and entering a virtuous circle. Everything has advantages and disadvantages. If we blindly pursue the development of tourism and neglect environmental protection, we will wantonly destroy the ecological environment there. Or there is no reasonable planning and layout, tourism development, and even vicious competition in the same industry and region; Or for the well-developed tourist attractions, the management is extensive in the process of tourism, and the tourist sites are chaotic; Or the promotion and marketing of good tourism products are not in place, and tourists are treated with inferior services in the process of consumption. These consequences may lead to tourism ruining tourism!