Can those who recognize that firearms may be needed for home defense be legitimately called gun nuts

A 1/1/2013 Google News search for "home invasion" shows that home invasions have taken place and are taking place in this country.

Some examples from a 1/1/2013 Google News search prior to posting:

Three people charged with assault, home invasion in Taney County ...
http://articles.kspr.com/2012-12-31/home-invasion_36084957

Man Pistol Whipped During Home Invasion In San Francisco's ...
http://sanfrancisco.cbslocal.com/2012/12/31/man-pistol-whipped-during-home-invasion-in-san-franciscos-mission-district/

Two shot, one arrested in Galva home invasion
http://qctimes.com/news/local/crime-and-courts/two-shot-one-arrested-in-galva-home-invasion/article_9eab089a-53a4-11e2-9067-0019bb2963f4.html?comment_form=true

Jewelry Store Robbery Began with Bethlehem Home Invasion
http://bethlehem.patch.com/articles/jewelry-store-robbery-began-with-bethlehem-home-invasion

Arrest made in south Fort Myers home invasion, stabbing
http://www.news-press.com/article/20121231/CRIME/121231025/Arrest-made-south-Fort-Myers-home-invasion-stabbing

2 men accused in Prescott home invasion
http://www.sfgate.com/news/crime/article/2-men-accused-in-Prescott-home-invasion-4158320.php

Help sought in solving home invasion, robbery, murder
http://www.news-gazette.com/news/courts-police-and-fire/2012-12-31/help-sought-solving-home-invasion-robbery-murder.html

Top 10 Stories of 2012: Brutal Home Invasion Attack Leaves Bedford ...
http://bedford-nh.patch.com/articles/top-10-stories-of-2012-brutal-home-invasion-attack-leaves-bedford-residents-on-edge

Home invasion suspect steals wedding rings from couple
http://www.winknews.com/Local-Florida/2012-12-31/Home-invasion-suspect-steals-wedding-rings-from-couple

Police: Men Arrested After Home Invasion
http://northbrook.patch.com/articles/police-men-arrested-after-home-invasion

Some communities are even reducting police protection for its law-abiding home owners and other citizens.
See, e.g., Fifth-Most Crime Ridden City in America Dismisses a Fourth of its Police Force. 911 Still in Service
http://www.democraticunderground.com/117297556

An honest discussion would include a consideration of these issues. Those who wish to squelch an honest discussion may want to call these reports or any references to them "right-wing talking points" or "NRA talking points." To squelch discussions, they may also wish to also call liberals and progressives who recognize a need for firearms to be owned for home defense "gun nuts." What legitimate purpose do they have for doing so?

Edited to add:
In the Heller opinion, the U.S. Supreme Court held, among other things,
"1. The Second Amendment protects an individual right to possess a firearm unconnected with service in a militia, and to use that arm for traditionally lawful purposes, such as self-defense within the home. Pp. 2–53."
http://www.scotusblog.com/wp-content/uploads/2008/06/07-290.pdf