In the MCU they are supposed to be Gods with a small g, as explained by Ego. He can even give people cancer and stuff. Vision is a mixture of organic tissue and inorganic tissue. Ego should be able to destroy him with his energy tendril things.
My first thought was Ego hella stomps then I thought weeeeeeellllll............. maybe a full power shot from the infinity stone maaaaybe......... but then I remembered that ego can and has regenerated himself with ease Soo yeah a spite stomp for Ego.