"Florida 10-20-Life laws"

"Would it make you feel safer?"
No, more highly trained police officers and quicker response times might.

"Would it make wannabe thugs think twice?"
No, I really don't think people about to commit a crime with a gun believe they will ever be caught. I don't think they consult a lawyer before committing their crimes.

"I am not talking about any right to own, carry, conceal or stand your ground. I am just talking about a deterrent for criminals."
I believe the above will be a major deterrent for criminals. If more people were allowed to carry guns anywhere anytime with no gun free zones then it would be much more difficult for them to control the situation to their satisfaction so even just lowly criminals would look for soft targets just like the terrorists do. If we would stop creating soft targets it would reduce crime as well as reducing places terrorist could hit us. Basically making it legal for all adult non felons to carry a weapon open or concealed by no longer making the simple act of possession a crime. Think about it, if a criminal can't be sure that only the security guards in a bank were armed would they not move on to another target? Why do criminals not take on police stations? It is not because of all the badges, it is because of all the people with guns. Common sense would tell you that the terrorist have been doing their mass shootings in "gun free zones" and using their suicide bombers for harder targets like airports.