Okay, I'll play along with your assumptions of this guys policy proposals based on a 3 minute song that just talks about observing common issues.
Taxes being too high
No, he says taxes too high for him, a working class man. Don't you agree? Do you think someone making 60k/year should be paying 25% taxes when the politicians making 10x that amount are paying 10%?
welfare benefits being too generous.
Really? He said 'we have too much welfare'? No - he says that there are a ton of people starving, who aren't getting welfare, but then we have people abusing the system getting that funding. The people that need funding aren't getting it, do you agree or disagree?
Again, not exactly a stretch to see the implied recommendation is tax cuts and welfare state cuts, pretty much the core planks of the Republican Party platform.
No, your lens of how you perceive him, make you believe he's saying these things that he's not.
don’t wish he had policies drawn up at all
Good, your wish came true, he doesn't mention any policies, but that's your problem, that he didn't and now you can assume his policy proposals, you're ridiculous.
reveal policy preferences
Once again, he doesn't. You assume based on the music he's playing and the way he looks. You're just being prejudiced.
Not that this guy is necessarily a piece of shit or anything, it’s just that what’s being revealed about him through this music
So you're saying you perceive him as a piece of shit because your assumptions of his policy proposals that are based on your assumptions of one line that he's saying in a vacuum?
Honestly, if you only respond to one thing, can you please answer this question: Do you honestly think you have 0 bias in your interpretations of his song because of how he appears and the type of music he's playing?