Everyone is capable, if they want to learn. But not everyone wants to learn. If you can safely drive to the store and back you have all the mental ability you need to run a node, including a LN node.

That said THERE IS NO NEED FOR EVERYONE TO DO SO and I have never seen a single serious bitcoiner make the argument the way you infer.

Sorry you sound like an idiot here. The point that "anyone can" is that is what makes the system decentralized. Anyone can is not the same as everyone will. Can means "they are not prevented from doing so".

Not everyone CAN start a bank even if they had the money. But anyone CAN run a node. You sound like and ETH shitcoiner or worse a BCH tard.