Gun Control & RKBA

Ohio was not a mass shooting by our definition. They are very rare, just well publicized when the happen. The death toll is a weekend in Chicago or Baltimore, where drug gangs and other criminals regularly kill each other. That has all the marks of a gang execution. While you have fewer shootings, but have more stabbings. When your criminals do use guns, they are more likely to use machine guns that the ones here.
Your country is awash with guns, just not legal ones.

You can't compare our countries for a number of reasons. One being culture. We are a more pluralistic and individualistic culture with a higher gang and drug problem. Yours is more collectivist and is a surveillance state that resembles Air Strip One, something that would never be tolerated here. More people die of heroin than are murdered. That's just heroin.