Just because some materials take a while to degrade or must be reused in different ways, doesn’t mean recycling is worthless. People should still recycle.
The most important benefit of recycling is that we recover the raw materials used to make the stuff we use. It takes a lot of energy and water to extract and refine virgin materials from the earth. The process can also cause land degredation and even social upheaval in the local communities it affects. Recycling these raw materials can help us prevent this from occuring.
Recycling also helps us reduce our greenhouse gas emissions. When products are dumped in landfill, the energy used to make them is lost. Recycling them can help us recover some of this energy. Recycling organic waste also helps us reduce our impact on our climate by reducing the amount of methane gas released into the atmosphere.
Despite the continued existence of landfills, people should still recycle. It takes a long time to implement change. If people continue to recycle and develop new innovations in recycling, eventually landfills will become a thing of the past.