By the standards you set, no idea which goes against the status quo can legitimate unless that status quo is so weak it can be totally circumvented: The biological corollary would be saying vaccines don’t work because they didn’t prevent every instance of the disease they were intended to prevent.
How many babies must we throw out with the bath water before we’re permitted to discuss the merits of the ideas themselves?
The misquote Sorkin, this the reason the Left in the United States looses so goddamn always.