Except not everyone who fought for the US benefited from the GI Bill. The prosperity of middle class white male boomers was in part at the expense of Afro-Americans and women (including white women). That is not at all unrelated. In fact, part of the reason for the later dismantling of the welfare state is that it began to benefit other groups as you moved into the 70s. All of a sudden, taxes were being spent to support “welfare moms” and “people who are lazy”, not just “good hard working middle class Americans”. See how the John Birch society talked about Civil Rights and see how some of their language seeped into the modern strain of conservatism.