The NRA is highly influential in the federal government. It is more limited in the states, but at the federal level, it is very strong, perhaps the most powerful lobby in Washington. But where its influence comes from is not from its spending budget, but rather from the numbers of Americans who support it. It is four to five million Americans, but I've read (can't verify) that there are also many more Americans who support its basic mission.
This is essentially it, and something the anti's can't stand. They get huge amounts of cash from uber rich supporters, and still lose most of the time.
The NRA is 3-5million or so, who are pretty cohesive voters on gun rights issues. And there is another group, even larger, that is the "silent" NRA, those people who aren't members, but agree with and vote with the NRA members on most things.
There are many, many more people who believe in gun rights than those who actually spend the money and join the NRA. And, politicians know this.
I have heard how it has been an unwritten rule for ages, in political offices and newpapers, etc that for every person who takes the time and trouble to write a letter to the editor or congressman, there are 10 or so others who feel the same way, and while they don't bother to write, they will bother to vote.
I do truly wonder about Latinos on guns. The stereotype I have of Latino men is that they tend to be the kind who would believe in their right to self-defense to protect their family and hence their right to possess the tools to protect themselves.
I think you might look bit beyond the stereotype and look at the actual culture in latin countries, as it pertains to gun rights and legality.
In the end, it doesn't matter what ethic/cultural group you are in or are from, if your interest in guns is primarily recreational, you won't break a gun control law.
If your interest in guns is due to a need, you will do whatever you need to do, including breaking gun control laws. If a non gun person feels threatened enough, they are going to get a gun. IF they can get one legally, (and in time) wonderful. If they can't, they will get one illegally if their need is great enough. When people get desperate, legal matters often take a backseat to safety.