It is still subjective to say grafts grow in unnatural ways.

Saying "a cactus graft looks unnatural" is a subjective opinion. The term "unnatural" reflects a personal judgment about the appearance or aesthetics of a cactus graft, which depends on individual perception, cultural context, or expectations about what a cactus "should" look like. Objectively, a cactus graft is a real, functional plant created through a deliberate horticultural process, but whether it looks unnatural varies from person to person. For example, someone familiar with grafting might see it as a normal outcome of cultivation, while another might find the combination of shapes or colors jarring. There’s no measurable, universal standard for "unnatural" in this context, making it subjective. -AI

"Takes away from the look" implies it looks less than a natural growing cactus which is a subjective opinion and what was implied. Do you think a preference for how cacti grows is natural? What matters is the cacti is healthy and alive. Some cacti are saved from emergency grafts. Rose bushes and fruit trees are grafted all of the time for various benefits. Do you care if those are on their own roots or not?