It’s been a while since the term “Straussian” was thrown around. Rather than project interpretations by third parties onto others, here are some actual thoughts from the philosopher himself on the subject of progress:

When the prophets call their people to account, they do not limit themselves to accusing them of this or that particular crime or sin. They recognize the root of all particular crimes in the fact that the people have forsaken their God. They accuse their people of rebellion. Originally, in the past, they were faithful or loyal; now they are in a state of rebellion. In the future they will return, and God will restore them to their original place. The primary, the original or initial, is loyalty; unfaithfulness, infidelity, is secondary. The very notion of unfaithfulness or infidelity presupposes that fidelity or loyalty is primary. The perfect character of the origin is a condition of sin—of the thought of sin. Man who understands himself in this way longs for the perfection of the origin, or of the classic past. He suffers from the present; he hopes for the future.
Progressive man, on the other hand, looks back to a most imperfect beginning. The beginning is barbarism, stupidity, rudeness, extreme scarcity. Progressive man does not feel that he has lost something of great, not to say infinite, importance; he has lost only his chains. He does not suffer from the recollection of the past. Looking back to the past, he is proud of his achievements; he is certain of the superiority of the present to the past. He is not satisfied with the present; he looks to future progress. But he does not merely hope or pray for a better future; he thinks that he can bring it about by his own effort. Seeking perfection in a future which is in no sense the beginning or the restoration of the beginning, he lives unqualifiedly toward the future. The life which understands itself as a life of loyalty or faithfulness appears to him as backward, as being under the spell of old prejudices. What the others call rebellion, he calls revolution or liberation. To the polarity faithfulness—rebellion, he opposes the polarity prejudice—freedom.

Worthy of reflection, given all the talk about progress and change in today’s politics.
I believe these words begin to get at what is the great philosophical divide in this country. If we are going to resusitate an alternative view to the now more dominant left-wing progressive world view, I think we are going to have to connect it back in certain ways to this baseline and then articulate it in a pragmatic way which people can intuitively grasp.
We have a lot of work to do.