I immediately became angry (bitter and clinging yes) at the idea that a billionaire from NEW YORK (not Pennsylvania) was about to wage a war against the second amendment. Heck, I'm still angry about it. I can only imagine the conversation with some people, "Universal background checks don't sound so bad." *palmface*
For those who don't carry or who have even held a firearm it won't matter to them. But for me it is a huge red flag. If Bloomberg can get this type of legislation passed at the state legal in strategic states that will indeed be a signal to the federal government to do a universal registry...er background check.
If you don't understand the argument or concern check out NRA President Wayne LaPierre. It's pretty simple.