It is not all electronic equipment are made up of silver or gold. I do not think anyone has seen bitcoin physically except the digital copy. For that, bitcoin would have existed without those two liquidity.
Yeah, not all electronics are made of silver or gold because that was too expensive already but some do only need other components and they can still be able to work fine. Btc is a digital currency so it doesn't have a physical form although there are some btc fan boys who are minting a physical coin with a btc logo on it and then they engrave private keys there or maybe some kind of a qr code for it to work like a physical version of btc.
I think the op is saying that btc should give credits to gold and silver because if not because of them, there will also be no btc but I think the title of his thread is different but anyway I disagree with that.