HOPE & FEAR are the only two fundamentals which commercial business uses to sell its product and services

No, it is used by Religion too

Christianity is an Abrahamic monotheistic religion based on the life and teachings of Jesus of Nazareth. It uses HOPE as a tool to expand itself across the world via missionaries converting people by giving HOPE that the Jesus merical will save yo

Islam is an Abrahamic monotheistic religion teaching that Muhammad is a messenger of God. It uses FEAR as a tool to expand itself across the world via terror groups found in name of religion and forcefully converting people on gun point or knife

So where is Sanatan as HOPE & FEAR are already taken?

Sanātan Dharm is a kind movements that incorporate various teachings from the Vedas, Upanishads, and other texts such as the Ramayana (Character Building) and Bhagavad Gita (Karma), which itself is often described as a concise guide to Sanatan philosophy and a practical, self-contained guide to life.

SANATAN dharma is DHARM not religion by a person and his book. It is not a Merchant of FEAR or HOPE. It never promote conversion using HOPE or FEAR

SANATAN empowers you to use your brain and wisdom. It makes you powerful enough to lead a life with no FEAR or HOPE

It only talks about KARMA, the duty and responsibility you have toward Humanity, Nature, Country, Society, family and the last is self

SANATAN is library not a book

Like Raymond's punch line is "The Complete man"

SANATAN punch line could be "The Complete Human"

So be proud of being a Sanatani, abusing others doesn't make you great. like I always say, If you want to be bigger, don't cut the other line, rather draw your bigger Line

Sanatan don't need Brokers, 

Jai Shri Ram