How can you keep the structure of a society without destroying the fundamental things that cause it to function well in the name of being progressive?

This is a very important question, but it might be too broad to answer meaningfully.

In the context of a society that is already functioning well, I would say the preservation of incentives that keep everyone onboard with the nation's goals and values. For example, people will like capitalism as long as capitalism works for the vast majority of people. As long as there is still opportunity, and regular people can own homes and start families under capitalism, they will support it. Unfortunately, nowadays we are seeing a breakdown of that.

In addition, in terms of national unity, you have to make sure everyone agrees on the same values. Not too long ago, most Americans agreed that America is a positive development, its culture is ultimately a good thing, the Constitution secures freedom (and freedom is important), and the founding fathers were not evil. Today, due to open-borders policies and the subversion of education, we're seeing a trend away from that, where many people are not onboard with the national cause and indeed feel no loyalty to America at all.

So what about in the context of modern society, which is not functioning well? I'm working on it. I think the gist is moving people out of big coastal cities and out of blue states generally, setting up their own intentional communities, and striving towards self-sufficiency and co-sufficiency. Comment or message me if you're interested in discussing this further.