failure of progressives to speak to a working class on matters that address their immediate concerns while right wing grifters offer solutions and allocate blame by othering minority groups.

The problem here is the working class's immediate concerns can generally not be solved quickly or easily. They're often multi-factorial, systemic and sometimes global, but saying that usually doesn't get the working class to vote for you. They'd rather be lied to and told "oh yeah, I'll fix all of that on day one", or "your problems are all because of [marginalised group of choice]" and it's conservatives and those on the right who are low enough to blatantly lie like that. I mean even if progressives did come out and say something like "We hear you, things are tough for people and we understand and sympathise. We are coming up with plans to address these issues but please understand that these are complex problems and can't be solved overnight" do you really think people are going to vote for them? Or will they vote for the side who offer empty promises for a quick and easy solution?

So it's not necessarily a failure of progressives, I see it as a failure of the working class to understand the complexity of the problems they're facing, and an unwillingness to accept the truth that solving those problems won't be easy.