Hi clo,
It's sad. Also frustrating. The US seems unwilling or unable to do anything about its glaring issues, even when it has normal presidents.
Now it has a destructive, treacherous one. So, of course, this. Again.
The old, benign, problem-solving America is long gone, if it ever existed. It's just a place where horrid things happen and nothing changes to prevent them happening again.
Just in case America cares. Other countries can and do change things like this, without resorting to civil wars. If America does change its laws around the ownership of firearms, it will be one of the last to do so, not the first. Like with slavery. The US Constitution doesn't seem to work very well in some important ways.