In the full video, Dr. Fernandes is making a point that, historically, atheism has never lasted more than a generation. For example, ancient Athens experienced a period of atheism which ended abruptly with war.
Atheism is unnatural for humans and requires fierce indoctrination to create en masse. Looking at Europe, can you say that atheism, and not Islam, will rule there eventually? In America, if school choice ever becomes law (as it is in Sweden), atheism will find itself outdated within a decade.
Atheism is in its heyday. However, within 20 years, it will be a forgotten and ridiculed niche.