What should a person do who is subjected to bullying and ridicule due to not being married and having a condition that prevents him from marriage and sexual intimacy, and is suicide the solution?

Mocking people is bad manners, and Allah has forbidden it. If you endure this trial, Allah will raise your ranks and expiate your sins. You should stop those who mock through advice or by complaining. If it is possible to leave the job and move, then do so; otherwise, be patient. Sexual impotence does not prevent marriage, provided that the situation is explained to the wife and she agrees. Suicide is not a cure; rather, it is a disease and a transition to misery and loss.