As pointed out by Richard Stallman at the topmost comment about EFF's proposal to shorten the patent term for software patents to 5 years, it might actually be easier to entirely abolish software patents because of a requirement by WTO to have all patents granted for a 20-year period: https://defendinnovation.org/proposal/shorten-patent-term#co...
If you're a designated inventor of a patent or a patent application who opposes patents, you could publicly state your support for patent abolition at the Inventors Against Patents site: http://inventors-against-patents.org
The problem is that you really need to weaken the system before you can completely smash it. By reducing the value of patents it gets easier to argue for the complete demolition of the existing patent system.
If you're a designated inventor of a patent or a patent application who opposes patents, you could publicly state your support for patent abolition at the Inventors Against Patents site: http://inventors-against-patents.org