Why is embryonic stem cell research wrong?

Hint: Embryonic stem cells are pluripotent i.e a single cell gives rise to many cells of its own type. It is derived from the inner cell mass of a blastocyst. Human embryo teaches the blastocyst stage after 4-5 days of post fertilisation and consists of about 50-150 cells.

Complete answer:
Embryonic stem cell research is unethical as it results in the destruction of human life for research purposes. It is morally wrong since it is direct destruction of the embryo and doesn't benefit the individual embryo undergoing research.
The main disadvantage is that they are destroying human life. During the process of harvesting embryonic cells, this makes the research unpopular with those that believe that life begins at conception and that life is being destroyed.

Note:
As a result of religious faith it is also unethical as it is believed that human life begins at conception and that an embryo is therefore also a person. According to this, the embryo also has a right and interest that must be respected. From this prospective, taking a blastocyst and removing inner cell mass for research purposes is also a kind of murder.