There is not one law that has been passed or that has been suggested that would stop anyone from killing
No matter what you say, you can't stop the tide. So get over it.
The tide
One state ain't a tide.
To date, most states have some gun control laws in place. The reason the last three have happened in Texas, Florida and Nevada is why the last three were the hosts of the last 3 mass shootings. So you claim that laws don't stop any killings. Well the lack of laws certainly don't. The mass shooters just go to where there are no laws that get in their way.
Florida didn't go far enough so they are still on the Mass Shooter Heaven listings. Texas actually went the other way and they are still on the Mass Shooter playground list. Nevada didn't change a damned thing so they stay #1 on the mass shooting list. Colorado was on that same list until 2013 but went off that list because of laws and changes in society. There are other states that have moved off that list for the same reasons.
In this small county, in the last 3 weeks, we have had 3 possible attempts. 1 was a false alarm and 2 were real. The Red Flags went up, the Community reacted, the Police reacted and there were 2 arrests. One Arrest had nothing to follow up on but one did and he will be prosecuted. The "Alleged" Shooter never made it onto School Property. And this is from a county with just over 160K populance, mostly urban. If the community stays aware around the schools, you don't need to arm the Teachers. They go to lockdown, get the students away from the outside of the schools into secure rooms and wait things out. Anyone wandering the hallways after that can be considered a threat that isn't law enforcement. Let the Cops doe their jobs. it works.