lay down your disabled-person-accessible knives

Given that banning firearms seems to be something of a non-starter recently, it appears as though President Barack Hussein Obama has changed his sights to something else – banning knives.
Pro-Gun New Hampshire has the whole sordid tale thus far:

Beware! That folding knife in your pocket may turn you into a criminal if the Obama administration gets its way. Although there has been a lot of fear and speculation that the new administration wants to take your guns, the most pressing threat now is actually to your pocket knives. With the changing of the guard at U.S. Customs, that agency has now embarked on redefining “switchblades” under federal law to include a wide variety of one hand opening knives that never were intended to be prohibited. In fact, many of the knives U.S. Customs now seek to prohibit under the Federal Switchblade Law had not even been invented at the time of its enactment! Furthermore, four previous U.S. Customs ruling letters (prior administrations) specifically determined “assisted opening” knives not to be defined as switchblades.

This new proposed U.S. Customs regulation is so broad that thousands of pocket knives will fall under its sweep and millions of knife owners will be affected. The problem is not simply that imports will be banned (which is bad enough), but that the “agency determination” will be used by domestic courts and law enforcement to determine what a “switchblade” is under both federal and state laws. Many states, including New Hampshire, fail to define switchblades and simply rely on the federal definition.

For me, having an assisted-opening knife is a matter of convenience, given that I carry it on my left side, and I am right-handed. But what about people with only one hand, or one hand that is disabld? How is a proposed ban on assisted-opening knives not a violation of the Americans with Disabilities Act?
More generally, how is it the government’s business to arbitrarily decide what is an is not an acceptable edged implement for their citizens to use? How is an assisted-opening knife any more dangerous than a “normal” knife, and even if it was, how should that matter?
As usual, when it comes to expansion of government control, this should not be a matter of citizens defending their property from government bans/confiscations/restrictions, but rather this should be a matter of the government defending why it thinks it should be able to regulate and control something it did not before. Remember, the government exists at our pleasure, and it is there to serve us. Unfortunately, the malicious, totalitarian entity growing in Washington seems to have forgotten that small detail…
The good news is that both the American Knife and Tool Institute and Knife Rights are already on the case, so we will have to see where this goes.