imo, based on the few conversations I've had which loop in Trump voters (past or present), Jan 6 did alienate quite a few people. From what I can tell, those who are sticking around are mainly in the camp of aggrieved voters who want to stick a monkey wrench in the works, whether they think Trump represents their interests or simply represents a disrupting force.
This brings me to a thought I've been having recently, which is: is Trump's lead as big as it seems? Is his base as large as they're reported to be? I'm seeing stories of misinformation being funneled to Americans which imply Trump is doing a lot better than he actually is.
What really makes my ears prick up is a poll from last weekend, in which Trump's lead is shown to be smaller than before. While that was framed as a small step forward for Biden, the underlying numbers make me wonder: the pollsters reveal they made something like 100,000 phone calls, and the poll results are based on the ~2,000 people who actually picked up the phone and answered questions.
Think about that percentage. Now think about the demographic you imagine would pick up a call from an unrecognized number and gladly sit on the line and share their political opinions. It certainly paints a portrait of a certain type of person and perspective.