I'm sure you mean, 'How do you arm "good people" only?'
Many seem quite satisfied with background checks for preventing guns in the hands of not-good people.
What do you think? Would you qualify? How much infringement will you accept?
Background checks would be seen as an infringement by some folks. What about non-criminal background checks? Mental health problems, for instance? People who take anti-psychotic drugs or mood altering drugs via prescription?
I have no problem with the stated intent of background checks, but in practice I don't see how we can be assured our rights won't be infringed if we submit to one.
The problem I have is that there's no way of knowing that once you've confessed to the government your desire to be armed, they'll forget about it when it's no longer any of their business (not that it ever was in the first place).
On the other hand, if 80% percent of the public falls into that category, it's probably a GOOD message to send the guvmint.
Problem #2 is this: If 2A was intended to protect us from a future tyrannical government, how can we put the government in charge of deciding who can be armed?