That's a sticky, gooey, tempting, way of looking at things, but in this case it is disastrously wrong, and will suck us down into total loss.
If we go along with a ban on bumpfire stocks -- throw them a sacrificial bone -- then what we've REALLY done is to acquiesce to the basic idea that guns are the problem and gun control works. The antis will dance a jig and pop champagne corks if they see us do that because they'll know they've won, it's just a matter of time.
If you agree with a little gun ban then you've just told the world, "YES, ok, fine, our guns are the problem, and we'll give some up -- its the right thing to do." After that there's no high ground left to stand on when trying to hang on to our other guns. Because if bumpfire stocks need to be banned because of what this one psychopath did with them, then AR-15s need to be banned because of what Lanza did, and shotguns need to be banned because of what Aaron Alexis did, and handguns need to be banned because of all the murders committed with them. And scoped rifles need to be banned because of Charles Whitman, etc., etc.
We CANNOT capitulate. It is absolute, certain death of our rights to do so.