Though they are right about how deeply linked the gun control debate is linked to America culture. There are many in the US who seem to link gun ownership with freedom and view any suggestion of possible gun law reform as a direct attack on their freedom. That they need a gun to fight off the government and each other. That the slightly gun reforms will lead to a 100% ban on all guns. That gun rights tump every other political issue out there.
You are right that there are some gun owners who feel this way. Not the majority though.
I could say that there are many anti-gun folks who want to take every gun away from every American. No guns needed for hunting or anything else.