Is Obama a threat to firearms rights in general? Of course he is. The question is how much damage he (along with Congress) can do. Banning concealed carry nationwide? It'll take a lot more than "hope" to make that happen.
The democrats in congress already have gun control legislation on the table. Obama will call it "sensible gun safety" legislation. He'll gladly sign legislation enacting a new "assault weapons" ban. And repeal the Lawful Commerce in Arms Act. And mandate a federal registry of handgun purchases. And ban semi-auto guns.
Seriously, you're not contending that Obama is not anti-gun, are you? After all, here are two examples of Obama's anti-gun votes:
Ban semi-automatics, and more possession restrictions
Principles that Obama supports on gun issues:
Ban the sale or transfer of all forms of semi-automatic weapons.
Increase state restrictions on the purchase and possession of firearms.
Require manufacturers to provide child-safety locks with firearms.
Source: 1998 IL State Legislative National Political Awareness Test Jul 2, 1998
Voted NO on prohibiting lawsuits against gun manufacturers.
A bill to prohibit civil liability actions from being brought or continued against manufacturers, distributors, dealers, or importers of firearms or ammunition for damages, injunctive or other relief resulting from the misuse of their products by others. Voting YES would:
Exempt lawsuits brought against individuals who knowingly transfer a firearm that will be used to commit a violent or drug-trafficking crime
Exempt lawsuits against actions that result in death, physical injury or property damage due solely to a product defect
Call for the dismissal of all qualified civil liability actions pending on the date of enactment by the court in which the action was brought
Prohibit the manufacture, import, sale or delivery of armor piercing ammunition, and sets a minimum prison term of 15 years for violations
Require all licensed importers, manufacturers and dealers who engage in the transfer of handguns to provide secure gun storage or safety devices
Reference: Protection of Lawful Commerce in Arms Act; Bill S 397 ; vote number 2005-219 on Jul 29, 2005