Yes, probably true. Incorrect: link Probably true, but needs to be viewed in the right context (hence the correction above) Fair point, but do you have any evidence indicating 'resentment' is the actual driver? I have discussions with people who probably fit into your categories, if we ignore the incorrect characterization around income, and 'resentment' isn't what comes across...except in the context of feeling like they are being unfairly tagged as the cause of any of this, or that they see the agitators being allowed to run rampant, causing real harm to lots of innocent people. But resentment of the underlying cause? I don't hear that from them, and although certainly not a huge sample, I think they're pretty indicative of the group you are characterizing.
If you look at Trump's campaign rhetoric both now and 2016 it is very much driven by resentment. The whole idea of "Make America Great Again" when trotted out at a time that the US was in the midst of a major economic recovery goes to the idea of when was America Great? The general view put forward both by Trump and his supporters was a time prior to cultural upheavals and globalization. To some vague postwar time. Given that the US has always had cultural upheavals of one sort of the other the rhetoric around MAGA was very clearly to a time when a Judeo-Christian and Anglo Saxon based culture dominated. The resentment comes from such things as "The war on Christmas". Further resentment has been pushed by the idea of cultural elites that look down upon working class and religious Americans. Trump very much plays upon this. Culturally Confederate iconography has come to represent the symbols of essentially white lower class resentment. While this started with longstanding historic resentment of the South being humiliated by the North from the War itself, through Reconstruction and the Civil Rights Movement as the Republican Party became more of a Southern party that view has now been passed to others who support the party. Trump himself has been defending those symbols and actively campaigning on idea that the Left is out to destroy not only those symbols but the history of the Confederacy. Trump specifically stokes resentment towards immigrants and from the beginning of his original campaign for President started out going after Mexicans. He frequently talks about crime but he and his supporters frequently talk about how they are depressing wages. There is also a belief in Trump supporting circles that illegal immigrants get more benefits than veterans and that immigrants in general are getting more benefits that Americans who were born aren't. There is little evidence for this yet is something that he has pushed and the Trump Administration has moved to cut benefits to immigrants even those who are here legally.