It's still achievable and worth a lot for believer of American Dream. For example, in America women could easily do their jobs but in many countries where women are restricted in homes only. Not targeting any race but still many people of backward mindset still exist. So, for those women American Dream is a thing because those who wanted to become a Doctor, Engineer, etc. could fulfil their dreams in America.

That's what American Dream mean, the land where dream comes true when you put hard work. Hardwork is the most necessary thing, if one is not willing to make efforts and still will think that he/she will fulfill their dreams in America then America is not some fairytale world. It's just a country where opportunities are available and if not then could be created. 

I always wanted to earn money, Passive source of money, but i have seen many people going to UK Canada but not a single one in my relative or friend zone has ever gone to US. So, i cannot say that life is hard there but i can say one thing for sure UK and Canada's life is not easy. Many people are sleeping on the roads (talking about immigrants). I do not want to leave my country, because my dreams could be fulfilled remotely