For example, I know artists who are vehemently against DALL-E, Stable Diffusion, etc. and regard it as stealing, but they view Copilot and GPT-3 as merely useful tools. I also know software devs who are extremely excited about AI art and GPT-3 but are outraged by Copilot.
For myself, I am skeptical of intellectual property in the first place. I say go for it.
The first is that people only recognize the problems with the things that they're familiar with, which you would kind of expect.
The other option is that there's a difference in the thing that people object to. My impression is that artists seem to be reacting to the idea that they could be automated out of a job, where programmers are mostly objecting to blatant copyright violation. (Not universally in either case, but often.) If that is the case, then those are genuinely different arguments made by different people.