That's not very good reasoning.
If all software patents are bunk, so are many electrical engineering patents.
If software is built on hardware, anything I represent in software can be 1:1 related to the digital circuit equivalent. It may be silly or infeasible to do so - but I could make an ASIC or FPGA that runs my latest piece of code. Maybe those wouldn't count because they're too close to the way we think of software. Okay - I lay out my PCB with just 4011s NAND gates. Is this sufficiently far from software to get me a patent for my ideas?
I think software should move towards a trade secret model and abolish software specific patents entirely. Unless you can demand to see the source code, you can never prove whether or not I used your algorithm.
That - or, software developers need to make one gigantic document of every single idea they have implemented and used. If everyone has 5 ideas a day that they implemented and wrote down, we'd hit some sticky situations where a new problem is found. And, much like the patent system, if we put it online where anyone could potentially see it, we can say that it was prior art for any future patent.
Then - as they don't have to be good ideas necessarily, we run through and make all permutations of every single word on the page, leading to every possible idea that can be thought of in that context. Prior art for everything. Or just get Pi out and start translating it to English.