Right now Haiti is being our-run with well-armed gangs. The government of Florida is so terrified of immigration from Haiti that they are deploying military force to stop immigration from Haiti.
These two statements are undeniable facts.
Here's another fact: Many of those guns that are causing so much suffering in Haiti, and are expected to send so many immigrants to Florida, came from states just like Florida. In fact, Haiti doesn't even have a factory that makes guns or ammo.

It is an arsenal that largely comes directly from the US, with most guns, experts say, likely to have originated from states with lax firearm laws, and many trafficked into Haiti from Florida.
This clandestine trade has left Haiti’s gangs with a vast cache of illegal arms and much greater firepower than the country’s dispirited and underfunded police force.

Want to know a a few other nations that have no gun manufacturers in their countries? Guatemala, Honduras, and El Salvador.

As a presidential candidate, Joe Biden pledged to reverse the policy. More than halfway through his term as president he hasn’t. The costs have been grave.

The correlation between more guns and more gun violence is well established in the US. But it’s not an exclusively American phenomenon. Guatemala is now getting a bitter taste. With the Commerce Department allowing far more gun exports than the State Department did violence is rising in the Central American country, producing a chain reaction that boomerangs back home. US gun sales in Guatemala drive criminal violence. Criminal violence in Guatemala, in turn, drives desperate migrants to the US border.

Guatemalan imports of US semiautomatic firearms “jumped from an average of about 3,600 per year in the 2010s to more than 10,000 in 2021, and nearly 20,000 in 2022,” Bloomberg’s Monte Reel reported. In the past three years during which gun flows into the country spiked, “the number of murders in Guatemala has risen annually, after 11 straight years of decline. More than 80% have involved firearms,” Reel reported.

Obviously the problem goes well beyond Guatemala.

Honduran officials say that most of the non-registered weapons seized at crime scenes came from the United States. US officials say it is slightly less than half...More than 100 weapons were traced all the way back to gun shops in the United States, and nearly half of those traces led to Florida purchases.

In 2020 the Trump Administration changed our firearms export rules. The Biden Administration has refused to change them back.

The global network of Foreign Commercial Service employees has effectively become a combination SHOT Show travel agency, gun industry promotion service and deal brokerage. “The assistance we get from the Commerce Department, especially at SHOT Show, is invaluable,” says Luis Guerra, founder and chief executive officer of Armaq SA, a Peruvian gun importer and retailer. To make his point, he presents a printout from the 2023 show, listing dozens of appointments with suppliers he says the department helped him set up. “You really can’t be in this business without that help,” he says.

Some of the most crime-ridden nation in this hemisphere can't even make their own bullets. They get almost all of their guns from the United States. Which ends up forcing their people to flee to the United States to escape the violence. Which then cause Republicans to complain about the immigrants that are fleeing the guns that were purchased in those very same states.
Also, no, countries like Honduras do NOT ban gun ownership.

Here's an outside-the-box idea: If you really wanted to stop illegal immigration, then stop engineering coups in countries like Haiti. Stop getting involved in civil wars like in Guatemala and El Salvador. And stop using tax payer money to help gun exporters export weapons of death to nations already over-run with gang violence.