What are the main arguments supporters use for stricter gun-control laws?

Supporters of stricter gun control laws in the United States advocate for measures they believe will enhance public safety and reduce violence. Their primary arguments include:

• Reducing Gun Deaths: Proponents argue that stricter regulations, such as universal background checks, licensing requirements, and "red flag" laws, would significantly lower rates of homicide, suicide, and accidental shootings. They point to data suggesting that limiting access to firearms—particularly for those at risk of harming themselves or others—saves lives.12
• Public Safety and Conflict De-escalation: Supporters contend that the presence of a gun often turns impulsive arguments or brawls into fatal encounters. They argue that permitless or "constitutional" carry laws increase the risk of violence, whereas training and vetting requirements help ensure that individuals carrying firearms are capable of handling them safely.34
• Constitutional Interpretation: Many advocates emphasize that the Second Amendment is not an unlimited right. They cite Supreme Court precedents, such as District of Columbia v. Heller, which acknowledge that longstanding prohibitions on firearm possession by certain individuals or in sensitive locations are constitutional.56
• International Comparisons: Supporters often highlight that other developed nations with stricter gun laws experience significantly lower rates of gun-related homicides and suicides compared to the United States.16