If it was actually theft, I'd agree, but an idea is not able to be stolen. And who inspired the person to create? Did they steal by observing the world around t

If it was actually theft, I'd agree, but an idea is not able to be stolen. And who inspired the person to create? Did they steal by observing the world around them? No one is an island, and who's to say they'd even have the creative muse without the support of language and other art. Calling "copying" stealing does no good.