Why must gun owners be punished for the actions of crooks?

But yet again, no mention of why flintlock muzzle-loading pistols are on a restrictive H class licence?!!! Crooks don't use these at all!!!
Firearms associations have failed Australian gun owners! We don't ask much, we just want a fair go & sensible gun laws that DO NOT punish/penalise law abiding gun owners.

https://www.gympietimes.com.au/news/why-must-gun-owners-be-punished-for-the-actions-of/3331954/