You're replying to a thread devoted to discuss evidence the efficacy with which vaccines reduce spread, in which they note that the transmission rate is much lower in doubly vaccinated households than unvaccinated household, and also comment that they were a little surprised and disappointed that the vaccine was not
more efficient in reducing transmission, as other vaccines often are.
I don't think you're in a position to lecture people about inability to process basic facts if your partisan screed depends on ignoring this to insist that "they don't reduce spread" is an established fact about vaccines. How is one supposed to debate with someone who insists the sun rises in the west, indeed?