You mean your right to tell other people what they can or cannot do.
Copyright does not give you a right to do any more than you can anyway. It removes the normal rights of everyone else.
Without copyright you are still entirely free to sell copies of 'your' things. It is just that everyone else can too, so the normal functioning of the market will drive down the price so it will not suit you individually.
Copyright is really a privilege. It is something bestowed by the public, for the benefit of everyone.
> see how long I continue to make my new creations available
I suggest that might be a risky or weak strategy. People will create and communicate things anyway -- as they have been evolved to do. You will just be removing yourself from the cultural gene-pool.
As has been pointed out you can always do what you want with your work, the question is whether you should be able to control copies of your work.
While there is some romantic appeal to the notion of a Galt's Gulch where the special creative people retreat, one should be cautious about the approach of holding your breath until other people's faces turn blue. It leads to dubious hyperbole like the member of the US House of Representatives who insisted that if we didn't extend Disney merchandising rights, we would be depriving society of its next Shakespeare. Ahem.
For a more scholarly discussion of the dubious merits of intellectual property, you can read Bodrin & Levine's book[1] "Against Intellectual Monopoly" -- it's available free on their site and other places.
Are you making creations available right now? In that case, why? Surely you are aware that currently, others can use your work under fair use and that your copyright has an expiration date?
I don't think anyone is (seriously) suggesting doing away with copyrights entirely. The real question is: how much incentive do you really need? Would you really say "well, if I put work into this, after 50 years anyone can make money off of my effort, so f..k it!"? I have a feeling 20 or even 10 years would be sufficient payback time. After all, patents are limited to fairly short times and it's not like there's a shortage of patent applications.
Your response reminds me very much of Atlas Shrugged. That idea is central to the book. I recommend it as an interesting read, though not everyone cares for Aynn Rand's style.
I am sure many other creators/artists/inventors feel the same way.