The only thing that works effectively to stop a crazy with a gun is good people with guns.
Crazy starts shooting, and gets shot. It's happened enough times that it should be the go to story on the MSM, but it's not.

The thing about an AR-15 lower is that it doesn't take any of the force of the rifle.
The thing that gets the serial number stamped on it, does nothing but hold the trigger mechanisms and cartridge.
It doesn't have to be super strong to resist the burning of the powder. It just has to hold together.
Thus, it is an easy part to create for the average person.

The rest of the AR-15 can be ordered on-line and sent through the mail.

The political triangle is a better way to view actual political sides.

Further, we are only offered two fake sides by the MSM.
Do you want the left, where govern-cements own the corporations
or do you want the right, where the corporations own the govern-cements?
(hint, the corporations and govern-cements are run/owned by the same people)

The thing that probably had you thinking you were on the left is caring for the poor.
Unfortunately, the "right" has done more for the poor than the left ever has.
I would go so far as to say, everything the left has done for the poor is designed to keep them poor and create people who go on rampages with guns.

I mean, how could you go against something that is "obviously" there to help you?
(but in reality is keeping you down, keeping you trapped, and insists that other people help keep you down)
So, what do you do? Go crazy! Or you find out everything that was taught to you in govern-cement school was a lie.

We need to think outside of their box.
If we want to prevent homeless, what we need to do is build tiny apartments for EVERYONE.
And these need to be built by the community, for the community.
And yes, these will probably be concrete boxes (with heating embedded in the walls) that can be pressure washed clean with solid steel doors.
So, you find yourself homeless, you show up and are given a key to a room. (the only problem is how to claim vacated rooms)

This is a solution, but we never here about it. Whenever someone brings it up, "people" claim that it's inhumane. However, it would stop the runaway house prices and homeless in one go.
And it would cost less than one year of section 8's budget.