These types of decisions will tend to be made collectively in this country, so in a way, it is my decision to make, and yours.
Laws are made by elected representatives. That in no way validates the theft of the sovereignty of indivdual will. The measure of right and wrong in the validation of limits on Free Will comes from a moral code that is used to examine the limit.
The moral code I use comes from the Bible. When I examine the a law, or consider a vote, I measure rightness and wrongness accordingly. One of the 10 commandments is "thou shall not steal". That means I will not limit others by any method, as long as what is being limited is not wrong by the same code. Theft of will and goods by way of the ballot box is the same theft that occurs by way of outright violent threat. In fact it is robbery, masquerading as peaceful governance.
A man's life and goods are his own. Having a gun handy to defend them is his decision and his alone. He is not deciding to murder, he is deciding matters of preservation and defense. Interfering in this decision amounts to theft.