Conservative catch phrase " what everybody knows"

I have been struck by how often Trump supporters I encounter use the phrase "everybody knows" to assert statements which are factually false, often obtained from fake new sources.

This has been especially true about the ACA, aka Obamacare. They insist, in particular, that everyone knows Obamacare is collapsing and that everyone is experiencing unaffordable, catastrophic increases in premiums with high deductibles.  They
also assert that no insurers are remaining in the market, that they have left or are in the process of leaving.

Reality is that while there are problems for some of those on the Obamacare plans, that is mor anecdotal than widespread, and varies widely by geography.

Insurance companies have pretty universally been reaping unprecedented profits. Where a problem exists it can substantially be tracked back to 2015 legislation by Republicans that gutted guarantees to make good on losses to insurers.

Paul Ryan has  said he wants Americans to have "patient centered care'"  not government centered care.  Yet what the Congress Republicans have proposed takes care away from Americans, and can only accurately be described as  corporate profit care, without any genuin concern for patients at all.