No thanks. Illegal Gun Owners by definition aren't going to give a rats' butt about background checks, but legal women who are being stalked will. The idea that you harm the criminal by hampering the non-criminals' ability to defend themselves continues to carry little water with me.
You can put obstacles in front of the law-abiding all you like; it will stop those who do not care about the law already not a whit. Stop for a minute and ponder the ridiculousness of the position that the kind of person who would ignore the laws about murder would be seriously worried over whether or not he should violate the laws on receiving proper weapons handling training and a background check.The more obstacles you can place in front of people who are whimsical in their desire to own a gun, the fewer people you will have running around pointing guns in other people's faces. The more checks you put in front of straw buyers, the fewer guns will be in the hands of irresponsible people.
Responsible and law abiding gun owners SHOULD support these type of measures. "Crazies", as you have called them, make the rest of you look bad. I would think you'd work for a way to try and stamp down the crazies from reflecting poorly on you, rather than doing everything you can to make sure they can keep getting guns and keep harming people.