Earlier quoted context omitted.
poor people don't get lower rates. they get payday loans and 19% credit cards, or a tent. inflation is "good" for debts if your budget is otherwise balanced and your income rises apace, but if either is not the case inflation will only depress purchasing power. historical farmer revolts were interested in higher inflation because they had land, a real asset, and sold crops, real commodities, that provided appropriate…
Farmers needed loans to get them between harvests, and those were also quite usurious. The land was in relative abundance (even with the "end of the frontier"), so it's not like it was the sort of anchoring asset that middle class home-ownership today is crocked up to be. But you are right that poor assets or debts are not enough to explain how interests rates are supposed to help or hurt them. The idea is very rough…
Let's be honest here, this is just a neoliberal fantasy that amounts to a liberal equivalent of trickle-down:. Enrich the rich and the $ (via "jobs") will make it magically to the Lower classes.