It reduces gun deaths.
Duh.
How, when:
1. Of all gun related deaths, 2/3rds are suicides. What "common sense" gun control measure reduces this number when the suicidal can, and often does, simply seeks other methods.
2. 80% of all the others is gang related. What "common sense" gun control method stops gang members from murdering other gang members?
3. Domestic disputes. What "common sense" gun control measures reduces these.
4. Death by LEO in self defense or defense of others. What "common sense" gun control measures do you suggest.
I've just listed 99% of all gun related deaths.
If you have, for example 30,000 deaths prior to these laws being implemented, and 30,000 after, then what exactly did you accomplish?
That the body bags were not filled by dead bodies not killed with a gun is not a logical accomplishment.