Let's get this over with....
Before they all start chiming in, let's go ahead and catalogue the anti-NRA arguments:
1) It is an unbearable burden on my mental health to receive fund raising mailings from the NRA. I agree with their political lobbying and supporting the election of pro-gun politicians, but why are they always trying to raise money to do these things? I realize I have the option of calling the NRA and getting myself on the "reduced mailings" list, but that's just too much work for me to cope with.
2) Instead of focusing on realistic, achievable political gains and a bit-by-bit strategy, the NRA should be working towards a grand-slam, fix-everything-at-once-and-make-it-perfect-forever RKBA action. Like, for instance, going to the Supreme Court and forcing them to rule that the 2nd ammendment protects my right to fire off naval artillery in my suburban neighborhood. That's why I have withdrawn my support from the NRA and am giving all my money to the "Naval Guns for Everybody Everywhere" organization.
3) The NRA allowed the Assault Weapons Ban to get passed. Don't they realize that just because the Congress passes a bill and the President signs it, that doesn't necessarily make it law? I think they deliberately allowed this law to pass because it was part of a back-room secret deal with the Brady Campaign.
4) The NRA is racist. Michael Moore said so on Oprah, and I saw a cartoon on an anti-NRA site that showed the gun banners in poor lighting, and in my college Political Correctness class I was taught that poor lighting is a racist code for minorities.
5) The NRA is really just a front for the Republicans. If all they cared about was gun owner rights, they'd be endorsing prominent Democrats like Hilary, Schumer, Kennedy, Fienstein, and so on. The fact that increasing gun control is actually part of the Democratic party platform should not prejudice the NRA against Democrats.
6) The NRA is really just a front for the big business gun manufacturers. Michael Moore and Rosie O'Donnel both say so, so it must be true. Besides, what do I care if the anti-gunners drive all the gun and ammo companies out of business? I reload, cast my own bullets, make my own powder from urine and charcoal, and manufacture all my own guns from iron I smelt in my garage. I don't need those stinking big-business gun companies around, and neither does anybody else. Being able to actually buy guns and ammo in stores legally has nothing to do with my right to keep and bear arms.
There are probably a couple more, and we will start seeing them posted here soon, but they are basically variations on the above.