that is simply not true. The scientific data has been widely available for several weeks at least, yet ultra-zealot covid vaccine pushers are just ignoring it and continue pushing Moderna/etc. stock up together with political establishment.
https://www.reuters.com/business/healthcare-pharmaceuticals/...
"the effectiveness of Moderna's vaccine against infection had dropped to 76% in July - when the Delta variant was predominant - from 86% in early 2021. Over the same period, the effectiveness of the Pfizer/BioNTech vaccine had fallen to 42% from 76%, researchers said. "
In general your post does the same propaganda trick that many similar posters here and elsewhere do - tightly associate covid vaccines which are failing for delta (nothing exceptional in such situation, happens all the time with flu vaccines) with success of proven vaccines. What is your point? To undermine the people trust in the proven vaccines like measles and polio and even in the general vaccination principle by forcefully pushing failing covid vaccines upon them?