However in this instance by striking down on the Tower, God punished men with confusion which is a denial of free will. He has altered the nature of man by altering his very mind which is an act that goes against free will. Moreover he did not even give man an opportunity to avoid this fate.
How do you know God altered their minds? We have to step back and look at the larger point being made by the author, i.e. that some sort of ungodly urbanization/centralization was taking place but then it was at least temporarily slowed down or stopped, and the author attributes this to God's intervention.
The narrative seems to indicate that this outcome was partly due to a linguistic split and/or difficulty to communicate and cooperate, but there's nothing that dictates we must take this as God literally eliminating their ability to recognize each other's words. It's very possible the author is attributing the "natural" linguistic delineations, conflicts and migratory patterns in this region over time to God's will.
Here's what we know based on the narrative alone:
-We have no idea how long of a time period it is referencing (but any urbanization project back then would have taken a long time).
-We have no idea how many people it is referencing (but, based on the context, it could be referencing a large group of Semites i.e. descendants of Shem)
- We do know there was some sort of urbanization project underway, perhaps with certain religious "tower"(s) as the core public buildings.
- We have a general idea of where this took place
God could have easily sent a prophet (as he often did in other times) who could have made the offer that the Tower must be destroyed. If people were unwilling to do so then then God could enforce whatever punishment he deemed fit. If that happened you could argue that God offered man a choice and thus free will. But this is not what happened so I can't see how any free will was observed. It was divine intervention and people had no say or recourse to avoid this eventuality.
Genesis 9:1 says that God tells Noah and his sons to "be fruitful, increase in # and fill the earth". It also makes clear that the rest of the narrative will begin to focus on Shem and his descendants, specifically Abraham. Although there was no specific prophet here, it is safe to assume that the Semites were well aware of God's will but many of them lost sight of it over time and eventually decided to ignore it completely, culminating in the events of Babel.
But, as far as OT "judgments" go, this one was mild to say the least.
You are basically saying that,
Let me be clear: I am not against any action one way of the other. If God takes no action and only makes a judgement in the afterlife where justice will be paid that is fine. If he chooses to take a more active role by containing rampant evil in this lifetime then that is also acceptable. What is less acceptable however is a more haphazard approach were God repeatedly punishes evil in the past but then decides to take a 2000 year hiatus which maybe nothing when compared to eternity but is more than enough time for evil to run wild. If the objective of the Bible was to contain the worst evils with periodic rewards/punishments then the Bible has failed in this regard.
Right, so either God should never intervene or he should always intervene when evil occurs? The former is deism, and the latter would truly be a threat to humanity's free agency.
I'm not sure why people assume that God was constantly intervening and passing judgment on humanity 24/7 in the OT. The OT texts arguably covers at least 10,000 years of history from the time of the Flood, and then only focuses on a limited region and group of nations. It's only after we make these flawed assumptions that it seems like God has been on "hiatus" for 2000 years. That hiatus perspective also requires that we ignore the entirety of the NT and the Gospel message centered in the person of Jesus, from whom stems the mission of the Church.
Why is that people in the Tower were punished but in all likelihood the bankers of today will go unpunished? Similar crimes different outcomes. I will only consider that God has taken action if there is divine intervention i.e. punishment is delivered by suspending the laws of nature in some manner (has happened in Babel, Noah's ark etc.). If the pigmen suffer due to the issues of bankruptcies, environmental destruction or social upheaval I do not consider that to be divine punishments as those outcomes came either from the actions of men or the consequences of the foolish actions taken by men i.e. self-inflicted punishments. If that happens then the pigmen's suffering is no different than what happened to the French aristocrats; it will merely be different because the scale will be far grander and perhaps the guillotines will be a little more sophisticated.
Most of God's judgments in the OT and NT are carried out through human instruments and involve only a few miracles if any. Beyond that, not all miracles must involve suspending the laws of nature, but rather could involve miracles of timing or rare probabilities. The judgments that involve God's direct intervention via suspension of natural laws are few and far between.