So, make the Depression even worse than it actually was, then? Maybe also add in a more excessive Gilded Age, featuring exorbitant divisions between the Average Joe toiling under their managers' whips and struggling just to put food on the table, as well as the ultra-rich robber barons who constitute the "top one percent" or whatever you want to call it?
Sure, that works. Add in an even worse Dust Bowl in there for good measure. I'd argue the conditions were already there in OTL, all that is needed is a spark to set the revolution ablaze. Maybe the Bonus Army incident escalates? Or Hoover is (somehow) reelected in 1932? Heck, in the occasion of a successful Business Plot (assuming it existed ITFP), could we maybe see a socialist counter-coup? Lots of possibilities to play around with.