There are plenty of specific rules by which the judges must adhere, and virtually no emphasis is placed on artistry, grace or poise. In fact, a lot of the major complaints about the way the sport is scored is that the judging system leaves little to no room for valuing artistry. Of course, you would know nothing about that as you know nothing about the sport.
The comfort I take in this is that people who share your uninformed opinions matter very little. Gymnastics and diving are some of the most popular sports in the Olympics and they're not going anywhere anytime soon.
Furthermore I have never impugned the level of difficulty and talent required to achieve greatness in these events , I just don't see them as sports. And their popularity has nothing to do with the issue under discussion.
The key point I am making is there is a serious element of subjectivity in the judging process and that to me rules them out as sports.
Can I ask you would you object to ballroom dancing or tango or salsa in the olympics ? And if you would object could I ask you why ?