I'll admit, I was pretty left leaning coming out of high school. I carried those beliefs for years. I was extremely uneducated on guns and thought people didn't have a reason to own them.
Then I started to educate myself on the things I thought was supposed to be taught to me in school.
Now I understand the constitution and why it was put in place. I totally get the reason to carry. Heck, I even carry.
Just looking back on my education, I have found so many things I was misinformed on or just plain not taught about. I've had to unlearn and relearn so much. All I can say is if you are against the 2nd amendment, get educated.