For me, cycling lost its luster not only after Lance Armstrong was caught and spent years lying to the American public about it, but also after repeat stories like this one (https://www.velonews.com/news/road/cbs-news-12-riders-used-m...) involving the Tour de France and other high-profile races.
The Olympics holds up the ideal of a level playing field for wholesome young athletes from all over the world to compete, but I think everyone knows that it's not a level playing field, even if the strategies used by certain countries to win are perfectly legal such as expensive training programs and granting citizenship to people who have tenuous connections to the new countries they represent (https://www.wbur.org/hereandnow/2014/02/14/switching-nationa...):
... There are several stories of athletes switching countries, including South Korean speedskater Ahn Hyun-soo who became a Russian citizen and changed his name to Viktor Ahn to join the Russian speedskating team, after falling out with the South Korean skating federation.
It's a shame, because I want to believe athletes and their coaches are honest people who strive for the highest possible standards, but it's hard not to become jaded after decades of pervasive instances of unfair advantages, corner-cutting, and outright cheating.