The NRA gets unenthusiastic support for me mainly for reasons explained on https://www.youtube.com/user/TheYankeeMarshal/search?query=NRA, but it gets my support nonetheless.
Also watch: Winning The Gun Rights War (There is good news out there), and Winning The Gun Rights War.
As for Veteran's Today, watch https://www.youtube.com/user/Rys2sense/search?query=Veteran%27s+Today, , and Maidhc Ó Cathail the disinformation of guilt by association tactics.
United States of America, 1st in gun ownership rate: the friendliness of the people in the U.S.A. varies a whole lot, and there are quite a few extremes. However, from what I've read, many Americans are outwardly friendly, and besides, overall, the U.S.A. is the #1 destination for immigrants around the world. Why would people immigrate to some overzealous xenophobic battlefield?
Now, here's a few places with a significant number of weapons in civilian hands per capita, and are still pretty friendly.
Alabama: though known to be quite religious, from what I've heard and read, people in Alabama have been at least perceived to be some of the friendliest people in the U.S.A..
Texas: even though there are, like everywhere else, bad apples, still is considered to have many friendly people. And Plano, Texas, has been reported to be rather gun crazy, but at the time the linked video has been created, had a murder AND nonnegligent manslaughter rate of only 0.4 (now it's 1.4), and now with the same statistic for Chandler, Arizona (https://en.wikipedia.org/wiki/List_of_United_States_cities_by_crime_rate_(2014)),
By the way, California has some of the strictest weapon laws in the United States (other than overseas territories such as American Samoa or the Northern Marina Islands, which you probably have not heard of before), yet the people get a reputation for not being the most friendly, or at least rather arrogant or condescending (not that I have an issue with most Californians).