Conservatives have three explanations for why people are poor:
1) they are all stupid and lazy because they have absorbed liberal values
2) they are smart enough to get ahead but can't because liberal governmental policies have ruined the economy.
3) they are mentally inferior due to belonging to the wrong race.
Particularly the numerous variations of 2 have found widespread success when explaining to the poor the reasons for why they are poor:
2.a) the foreigners / jews / muslims invading and pillaging our glorious, Christian home country are stealing their jobs
2.b) the socialists / communists / antifa bureaucrats are stealing their wages
This can be tailored and highly specific towards the target audience (e.g., Facebook Ads, Twitter Bots, in a small town with abandoned industry), alternatively keeping it broad and widely accessible (for Podcasts, banners, or national TV). What really matters for explaining this with impact though is the tone. It is imperative to be loud and angry, ideally you are yelling at your audience. Repeat yourself often and use the most limited vocabulary possible. You need to empathize with the anger of the poor for the clear and obvious injustice that has happened to them. Leaning into that emotion will make anyone happily abandon any remains of rationality and critical thinking, which they have experienced as being completely futile in advancing their own quality of life, or improving their family's living situation. Which is of course the reason why Conservatives would like to have as many poor people as possible amongst their constituencies, and are fighting hard to actively push more people into poverty. They know those people will be their most faithful voters.