Shared DNA in Music

The concept of "DNA" with music goes much deeper than some lucky nobody who sampled someone's life work so they could pollute it with lowest common denominator poetry and a Roland Drum Machine.

I submit that oogling over people who steal music by sampling is not that deep, and there's deeper methods of musical analysis than "This band sampled this beat, this means they're a natural progression of art".

Every example I skimmed over was some hiphop artist who ripped off music before them.

Other artists have some shame and just copy chord progressions, but rappers went so far to just completely steal parts of the song.

I will be charitable even though you called rap "lowest common denominator" poetry.

If you are genuinely interested, I suggest you look into the history of hip hop. IMO, the point of early hip hop was not to create sophisticated music, but to connect people by using sounds they were already familiar with. More important was the message and vocal delivery of the MC.