> There seems to be some kind of psychosis around it being the next oil

There's a very well financed propaganda campaign.

Yes, it's not the new oil, it's the same oil in "green" packaging. Plus some comforting lies about carbon capture.

Even if it was fully green, you can’t run an electrolysis system from home. So you have to buy it, so there’s a market and an expensive solution.

Electricity comes out the wall.