You keep moving the goalposts. First you say Bitcoin is worthless. Then you say you dont put resources into it; in other words, it is worth something, but you choose not to try and mine Bitcoins. Then you throw in the red herring of security. This has nothing to do with wether or not Bitcoin is worth anything. Then you say there is no central authority "that can stop people from performing theft." There is no central authority that can stop the theft of anything in the world. Also, if it is worth nothing, why are people so busy trying to steal it? These are absolutely pure fallacious arguments.
You say that, "stability of Bitcoin will only remain until another large scale hack occurs". What you have done there is substitute 'stability' for value. You had to do this because if you say 'value' or 'price' of Bitcoin, you would be contradicting your previous assertion that 'Bitcoin is worthless' It cant be worthless and have a market value at the same time, obviously.
You then say "The lack of central authority means that to deal with any theft... Batman". With cash, the same is true; Bitcoin is no different in this aspect. Another straw man argument.
Finally you say that you are not capable of using Bitcoins, and that using them is like keeping money in box in front of your house. Poor analogy aside, what is the problem with keeping a 'worthless' thing in a box in front of your house? Surely no one is going to steal it, and even if they did, why would you even care, since Bitcoins are 'worthless'? If you have a mailbox outside your house, the mail man leaves your mail in it for you to stroll down and collect; anyone could go out and steal it, and yet millions of people collect their mail in this way, with only a statistically small number having their mail stolen... but I digress.
The fact of the matter is, you just do not like Bitcoin. You admit you are not capable of using it. You do not like the fact that it is not issued by a government (a central authority).
All of this is perfectly OK.
What is not OK, is to claim that Bitcoin is worthless, because this is simply not true. Whenever we make arguments against something, it is important to be consistent, otherwise its hard to take the arguments seriously.
Bitcoin, like the different browsers that people use, will be adopted by some and rejected by others. This is how the market works.
The people who said that the internet would never take off, all look very silly now, and in the near future so will all the people who used faulty logic to dismiss Bitcoin today. They will all end up using Bitcoin, just like all the people who said the internet would amount to nothing who now use it on a daily basis.
I think he summed it up much better than I could have. Thank you. I think that may wrap up this argument, I know I wouldn't try to argue with that. If the opposition posts something else, I'll keep you guys up to date.