It's not about me 'not getting' an idea or vision; it's about my needing some sort of talent or skill to produce a piece of art which carries the idea or vision. I may not like Stormzy or Ed Sheeran, but I understand that there is some inherent skill in how they produce their art - I couldn't do it and neither could lots of others. The 'bed' and 'tent' need absolutely zero talent or skill to be created, only an 'idea' in itself. I could make the 'bed' and have an amazing concept that I feel the bed represents, but I wouldn't be an artist.
Simply put, I just don't think having an idea makes you an artist or even talented, it's how you artistically represent the idea, be it a painting, piece of music or novel that's important. If it takes zero skill to make the thing that carries the idea, the idea can still be valuable, but the 'art' is pretty pointless.