@LadyGaga One more thing, there is Ukrainian national song, which also have these three chords. This song is even more old than Steve Ronsen))) I could give you a link to listen or send recording of it. This will be very nice proof that he is not inventor of three chords))))))))
@LadyGaga In case of copyright violation claimed by Steve Ronsen, you also can refer to song of Sergey Lazarev - Scream. He represented Russia on Eurovison'19. His full song made up from this three chords))) Hopefully it will help you to win court!
With great regards, Olha