This point has been made several times earlier in the thread, but I’ll try again, with different words. 
The theft, or copyright infringement, does not happen in the result stage, no matter if the result is 100% human-made or 100% AI-made.
What is being referred to as “the biggest theft in music history” does not refer to users creating their own content with AI. The users are not the “thieves”. The theft in question refers to the earlier stage where the AI model itself is created, and how it is created.
For an AI to “train”, it has to scrape the internet for every piece of music available. It is a mass copying of likely every recording in music history, copyrighted or not. For something like Suno to even work, it has to physically copy, import and process the copyrighted recordings, because otherwise it has no data and cannot generate anything. So not only have they “pirated” all music in existence, they have also edited and modified it – and completely without consent – to work to their benefit. This is the mass theft I’m talking about, and it is on a scale that is completely overwhelming.
The difference: Humans are not physically copying copyrighted music, to be able to be inspired by it. AI, however, is totally dependent on that. Which again means that something like Suno only exists because of massive copyright infringement.
As you say, humans can make similar sounding music to existing music, and we have always done so. This is a natural part of making music, we are always inspired by everything we have ever heard. It is only natural. Often it is also the point, like in homages, pastiche, parodies, etc. All this is unproblematic, and not touched by the existence of AI.
For a “soundalike” to be illegal it has do be downright plagiarism, that is purposefully copying a main melody that is note-for-note identical to another, and claiming it as your own.
(Excuse me for starting to sound like a broken record.
I appreciate you all in that we can have a friendly discussion here on the Steinberg forums, a stark contrast to the dark corners of Facebook…
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