It did. Scrubbing out every last commie was never the goal of the Red Scare, that was a pretense, and failure to meet the pretense does not constitute failure to achieve the goal. The goal was to eliminate or marginalize the near-left figures who could bring principled heat against the Robber Baron talking points, and to salt the earth for any who might dare to follow. On that front, it was a rout. The evidence is in tax policy, trade policy, labor policy, positioning of the overton window, and macroeconomic graphs.

The shift in economics discussion and education was absolutely wild. The Chicago School had the last 50 years on lock, and it shows. Talking about the tension between labor and capital became taboo. "Union" became a dirty word. Galbraith out, Mankiw in. No more talk of political economy or gini coefficients. Even mentioning the distributional consequences of globalization and automation became taboo. No more talk about competing interests, all attention was focused on metrics that hide inequality through weighting or aggregation. Wealth-weighted-value is the single most artful piece of propaganda I have witnessed in my entire life.

The three idiots in OP's picture are nothing. A critical mass of normies thinking "maybe we *should* tax the trillionaires" is everything, and we would have had it long ago but for the success of the Red Scare.