1. This guy is cringe
2. Manusmriti confirms the out-of-India theory, which means every other religion is derived from Hinduism anyway
3. Even if what you said and what Manusmriti says is true, who really gives a fuck? I've seen a bunch of dindus trying to establish relation among how Israeli culture is similar to Hindu culture (Israel-Endia best frand saars). Some dindus also draw connection between Jap shinto gods and Hindu gods too like that.
But so what? Nobody gives a fuck. The West has funded a lot of money into establishing their superiority. They fund the notion of Aryan Invasion Theory actively. They claim Judaism is the oldest religion and all others are derived from it (so your Hinduism => Judaism reverts to being Judaism => Hinduism).
You can't do anything useful with these theories. Stop bootlicking the kikes.