You're right, to some extent, but you have to ask yourself why neoliberalism took hold and gained power. The problem with social democracy, even though it's the best version of a shitty economic system, is that it's still capitalism and at some point greedy assholes are going to want more, and will start influencing politics to get what they want. That's why neoliberalism became a thing, despite the succes of social democracy/embedded liberalism for the 99%, because there still was a 1% with much more power and influence. Neoliberalism was a planned and calculated attack on social democracy decades in the making by groups like the Mont Pelerin Society and individuals like Milton Friedman and Friedrich Hayek. Reagan was just a public symptom of this disease under the surface. If you keep capitalism in place in any way, it will always eventually trend towards it's natural endpoint of 0.01% being obscenely, unfathomably rich and the rest getting fucked over in every possible way.