Writing Feedback / A thesis statement on doping in sports for a research paper [2]

Hi!
I need help on polishing up my thesis statement. I am never good at writing and explaining my thoughts. Can someone help me make it sound better and give a perspective on the topic? This is my thesis statement below.

Doping in sports and other activities is a widespread problem that has affected people around the world. Their actions are affecting the future generations, teaching them to lie and cheat through life. These athletes who dope should be punished for their actions.