I don’t know about every states gun laws or which laws you might be referring to but I feel it’s a safe bet to say that laws that pertain to crimes committed while using a firearm have not been weakened in very many places.
What may have been weakened are laws that restrict law abiding citizens from using firearms lawfully.
The laws are not “weakened” so much as pleaded down to less time or lesser charges. Prosecutors do this to get an easy “win” and clear cases from their dockets. There are a lot of gun laws that I agree with but more that I disagree that they solve any of the current problems. Again, enforce what is already law and leave the good people alone.
Don’t get me wrong, violence is horrible and should be stopped but as a realist I promise that it never will.