There are far too many verifiable instances of Obama clearly stating his feelings about firearms and the right - or absence thereof - to own same. Again provably, prior to the campaign there was no ambivalence or equivocation in any statement or comment he made about guns, concealed carry, or the 2nd Amendment. Except for the campaign period, he has been unswervingly consistent in his opposition to gun ownership.
Why, then, would one expect him to abandon his anti-gun position when he's finally in a position to craft, encourage Congress to enact and the Attorney General to enforce laws that would accomplish something he has always claimed to be a worthy goal?
Biden has voted to ban "armor piercing" ammunition, which, based on the velocity and energy criteria used to define such ammunition would include 95% of all hunting ammo currently in use. Should we also gamble that he will somehow have a change of heart now that he can impose those beliefs on us?
Granted, there are a number of Dems who are believe in 2nd Amendment rights, but again to task and/or entrust them with the sole responsibility of protecting our rights to own firearms is a little risky, it seems to me - if for no other reason that the likelihood of 2-3 Supreme Court resignations during Obama's term of office is extremely high, if not certain. Hillary and Chuck Schumer come to mind - does that mix sound like the same gun friendly court that handed down the Heller decision?
So, buying more guns and ammo might well be neither paranoia nor preparation, but rather a reasonable response to a perceived threat. Whether or not that perception morphs into reality remains to be seen, but I'm erring on the side of caution. If at the end of the day I've overreacted, then so be it - as long as I'm not screaming "fire" in the theater I don't see the downside.
JMHO