For someone that is comfortable in their misery, uses it as a blanket to conceal their flaws, does not want to take responsibility of their lives—you can never change them.
Or perhaps you can even not change someone who wants to take responsibility of their life, unless they want to make the change.
What you can do is choose to change yourself. And then surround yourself with books and people that embody the change you wish to become.
When you do this and go live your best life, that in itself would quietly and loudly inspire many people to change.