Why is it impermissible to participate in the stock market to support youth projects and companies that provide essential services to humanity, especially since necessities permit prohibitions, and abstaining from this might lead to the Muslims' negativity and their lagging behind in providing these services?

Necessities permit the forbidden, and hardship brings ease. However, necessity is a state of danger or severe hardship where there is a fear of harm to oneself, a limb, one's honor, intellect, or wealth. In such a situation, it becomes permissible to commit a forbidden act or neglect an obligation to avert harm. Not every need is a necessity. A Muslim must be mindful of fearing Allah and avoiding personal desires. Allah Almighty has mentioned in the Noble Qur'an that He will compensate believers if they refrain from a forbidden act, as in His saying: "And if you fear poverty, Allah will enrich you from His bounty." Trading in stock markets and global markets has not been absolutely forbidden; rather, the danger lies in the evils that may arise from them. The means of earning a lawful livelihood and developing permissible wealth are numerous and available to whoever seeks and investigates them.