Firstly, let's get something straight. You're bringing up both Britain and gun control here... not me.
Secondly, I disagree with you. The most basic tenet of human existence is the ability to defend oneself. It is the most basic right a living organism has, because without it, no other rights exist.
Restrictions on ownership and use of firearms are not the disease, they are merely a symptom of a wider problem - the relinquishment (willful or forced) of this most fundamental right to an outside authority. That is why within 50 years rules can progress from limiting access to some firearms for some people, to prohibition of all firearms, to prohibition of pocketknives, to [what now essentially amounts to] a prohibition of the use of force. But even that is not the core concept, since an even more general problem exists: the abdication of one's responsibility for personal well-being.
When threatened by an animal or a stranger, a child will grab a stick or a rock to defend him/herself instinctively. That is the reaction that many places in the world are actively attempting to breed out of the population, without realizing the magnitude of the effect.
When you strip a person of the responsibility to take care of themselves, you actively encourage them to surrender, and even assertively relinquish their willingness to do so. Ultimately, such an action deprives them of the ability to protect their interests.
On a global scale, that explains why an extremist Muslim minority (which is a minority of a minority) commands such power in much of modern Europe. They are willing to use force and threat of force to attain their goals, while their opponents (political, religious, or physical) are unwilling, and close to incapable of doing so, even in self-defense.
A broader societal impact of aggressively pursuing a psychology of dependence and prohibition of self-reliance, is a gradual but inevitable alteration in the societal ratio between the producers and the consumers, a change that will likely be as poisonous to the Western economic system, as the class struggle... and is even more likely than class struggle to lead to the societal downfall, as an increasing proportion of the population accepts sufficient entitlements to be assured of their well-being, and grows to resent applying any effort to maintaining their lifestyle.