This argument is always brought up when it comes to universal basic income or free housing. It was disproven every time it was tested, but people still believe that everyone else will just stop working if they weren't punished for being alive anymore.
Do you recognize that these sorts of initiatives can have long term affects that are not accurately understood in a small sample sized study over a short period of time?
You said it was disproven, how can something be disproved if you only tested it during a really short time period? Maybe you meant to say "evidence suggests" but that's much different than something being disproven
People work to improve their material conditions. Material conditions drive society, after all. Do you do household chores at all, or do you let everyone else do them for you?
Communal ownership of property is the only way to truly aim at fulfilling needs and desires, rather than the profit motive.