It is not a fantasy. In fact, the opposite is true. The problem is that you are wildly out of touch with recent events. You are still pretending like it is 2004, not realizing that that was 20 years ago. Green hydrogen is a rapidly growing market and is following the trajectory of wind and solar.

That’s technically true, but it’s not much better in the scheme of things. It’s best, as you said, not to release any at all while reducing the production of more as much as possible. 

Same could have been said about electricity not that long ago. Now that renewables are building steam the switch to electricity is revealed as perfectly logical, why not the same for hydrogen?

Hydrogen is a harder sell, thanks to the poorer density, cost of storage, and the poor efficiency of production. But given the variable production of renewables all but guarantees we’ll end up with vast amounts of excess power we can’t store, we will need a fuel we can make from electricity that we can use, and hydrogen is one of the contenders for that task. Whether it’ll be the winner is more doubtful, but something will be, we certainly will never build enough batteries to avoid giving away cheap power for things like this, and there are still things that benefit from higher density fuels that aren’t going away (planes). Accusing people of being “worse than deniers” just because they’re looking a little into the future and betting on something that might turn out to be Betamax is a little presumptuous.

Hydrogen today is a fossil fuel. But hydrogen has a very obvious method of green production, the only problem is cost of power to produce it (thus why it’s all fossil fuels right now) but the inevitability of variable power sources like solar and wind in the future guarantees excesses of cheap power, so cost of power today is not going to be the same barrier tomorrow that it is today.

As for the fossil fuel industries plan to use hydrogen to maintain business as usual in a post fossil fuels era, I really don’t care if they manage to use their machines as long as they stop using fossil fuels, so that’s fine with me.

Edit: to be clear, I’m not supporting a hydrogen based economy, since that makes no sense, hydrogen is a storage medium for energy, not a production source. There have been people pushing it as a magical solution to all things, that is stupid. As a small piece of the puzzle it could fit, if we don’t find a better chemistry for high density storage of energy with simple conversion from electricity, which is as yet an unsolved problem.

You seemed to be knowledgeable about this topic, so I have a question:

I thought the process of obtaining hidrogen from the natural gas, naturally (pun not intended) captures all carbon as CO2, which is then can be stored somehow. Is it a valid path?

What do you think about electrolyses?

So was electricity until recently. Nearly all of it was made from fossil fuels. The difference is that we can make it from renewable energy.

And the exact same is true with hydrogen. If you cared at all, you'd google it yourself and realize that significant green hydrogen production is coming online. Not only is it all over the news, there are huge government programs supporting it now.

The fundamental problem is that you are either closed-minded or totally out of touch. It's time realize that it's 2024 and whatever outdated thinking you have is long over.