And all we have achieved by having this obsolete weapon system is to paint a target on ourselves, with no advantage gained over the nations that don't have these pointless weapons
Your approach is ludicrous, we will never use these weapons, and the Russians will never invade us as we have nothing that makes us worth the effort, except perhaps to neutralise the Nuclear weapons the Americans have foisted on us to increase their power.
If Nuclear weapons have prevented war, why is there such a big investment in Conventional Forces?
Because they are the only deterrent viable, that can actually deter anyone,
What possible reason could an enemy have to employ nukes to attack us? could they use and occupy the country afterwards?
Would it be worth having?
No, the only advantage would be eliminating the threat we pose with our nuclear weapons.
So where and what advantage do we have over a nation without Nuclear Weapons?
We simply make a target of out of a nation that otherwise isn't worth invading or attacking otherwise.
All you can come up with is nonsense and propaganda.
Anthrax and Various deadly Toxins for instance have been around longer than that and are equally useless but deadly weapons
And this statement "Totally agree for multi lateral disarmament. " shows just how confused your thinking is, for by the logic you use, that there is a threat from Russia, what logic would there be if that was true, in abandoning the nuclear deterrent when they have an infinitely more powerful military than we could ever possess?
And they could invade us any time they fancy?
The only thing that keeps nuclear weapons popular in the public mind is irrational fear and a complete lack of understanding of our own strategic value in world affairs, where we are simply only worth attacking because we pose a small but significant threat with our pitifully few borrowed weapons of mass destruction.