You quoted a short bit from Romans 1, but failed to highlight the explanation of what Paul was saying.
Rom 1:18-20--The wrath of God is being revealed from heaven against all the godlessness and wickedness of men who suppress the truth by their wickedness, since what may be known about God is plain to them, because God has made it plain to them. For since the creation of the world God's invisible qualities-his eternal power and divine nature-have been clearly seen, being understood from what has been made, so that men are without excuse.
Note the difference in what you highlighted and what I highlighted.
Paul is not speaking out against the wisdom of the world, rather he is pointing directly to that as all that is possible to know.
Paul is not addressing prophecy or scripture or revelation as the source of knowledge, but rather what we learn from the world around us, what has been made.
The only way to knowledge is through understanding of the world and universe we live in.
I have presented this to you before but maybe it is worth reading again. Here is a Pastoral Letter (a Pastoral Letter is one sent by the Bishop of a Diocese to be read to EVERY congregation) written over thirty years ago. It presents a different view of the authority of the Bible.
Note it points out that the Bible does contain two mutually exclusive and contradictory creation stories, that belief in the historical actuality or factual nature of the stories is NOT an article of the faith and that reality must override the stories.
It's interesting to note that this Pastoral Letter was just three years after the Chicago Statement on Biblical Inerrancy was issued and so for practical purposes the two were contemporary positions. Also note that it is not a decree but rather a consensus showing 100% support from all the congregations represented in the annual meeting.
While it affirms religious beliefs it also says that reality is the final authority, not stories written by humans and even coming from different religious cultures as is the case with both the Creation stories and the two Flood tales.
Would you say that all of them are Calvinists or can be defined as such?
Most are certainly Calvinist in the messages they market. But the Chicago Statement on Biblical Inerrancy does not address any of the basics of Calvinism as summed up by TULIP.
Romans is a fairly long document that follows a classic question/response pattern. Unfortunately, too often only half the material gets emphasized. As a whole Romans also follows that pattern as well with the first part bringing up issues that then get answered in the second half. Picking pieces parts out of Romans can lead to bumper sticker theology.