There is no way to validly claim your position is based on hard facts and mine cultural values. If those hard facts were true, we would find an easy answer when we analyze all the data. There, we find it is clear that banning guns does not directly lead to less violence and crime. You know the data worldwide. While I'm sure we can make a case that if we just pick some data and analyze it for certain facts, things get better with less guns. Just as we can pick other data points and find differently.
As to ignoring hard facts, how about black Americans and firearms? The Democrats were, statistically, right to try to keep firearms out of black hands during the time in and before the civil rights era with gun control attempts. Looking at the data today, and looking at the issue of crime rather than suicide, we can objectively make a case black americans should not possess weapons. So, we then need to balance the civil right of equal protection and the civil right of being able to keep and bear arms. Sure, that balance is racist and, I think, evil; but, if we want to address the majority of the problem...
Unless the data we're talking about is mass killings. Then, we balance things out a bit. However, since mass killings is not, statistically, a big problem--balancing might not be required.
There is no objective way to read the data to come up with the best solution. This is an inherently values-based determination. Just like abortion. Many more die from abortion than are killed or harmed by firearms. Well, unless the data shows no one dies except a few when there is a complication. Even looking at the data requires a value determination.
To save you the time, "Think of the Children!" Then, we shall post how we cannot understand how anyone can even, for a moment, put the life of a child on the same scale of some existential desire for freedom and responsibility. We may then talk of all those who have fought and died for those cultural values. Finally, we can discuss if they are heroes or idiots. We might then look at where we are now. Firearm ownership is up and violent crime is down. Even if we just talk about firearm homicide, that's down too. Some charts almost mirror the rates. Heck, if we look at the data, we should have MORE guns in the U.S.!
For safety.
Depending on how you read and interpret the data.