Big deal
Are you saying the homicides are falsely reported. Which way are the US over reporting for some reason? Are forign countries underreporting? Why dont the repressive countries underreport as well?
Fine lets pretend you are correct, lets examine the data that you clim will make you happy
California does not have the highest homicde rate in the country. It is 17th (Probably thanks to its strict gun laws). Louisiana is the state with the highest rate and it has among the waekest gun control laws (Ithas a brady score of 2/100). in fact of the 10 worst homicide states (LA, MD, MO, SC, NV, NM, MI, TN, MS & AZ) 8!! Had a Brady campaign score of 10 or lower making them among the least restrictive states in the country.