They had eight years to build an audience based on their own perspective but that is a feat a bit too hard for most people, and these people were happy to suck off the teat of Trump without realizing that Trump was a very limited time situation. After the stolen election of 2020 they still didn't figure out that things have changed. They don't get that Trump isn't the savior of America, that America and its health or lack thereof is largely independent of a guy getting railroaded.