YOu do realize it isn't 2017, right?
This is from 2021 before the price of gas went up.
https://www.lazard.com/perspective/...st-of-storage-and-levelized-cost-of-hydrogen/
You keep making the same claim and failing to see that it is not always true.
My scenario simply shows that at some point the cost of wind and solar is such that it is cheaper to have both production types and only use gas when needed. We have achieved that already in some areas since new wind and solar is cheaper than existing plants. See table 2 in my link.
The 2021 analysis shows wind to be at $28 per megawatt when not subsidized and $9 per megawatt when subsidized. When it costs $29 to run an existing gas plant and only $9 to build new wind generation, it quickly becomes apparent that the best use of resources to provide cheap electricity is to have wind with a gas backup.
Here is the EIA projections for plants coming into operation in 2027. In some cases it wouldn't be economically feasible to build wind or solar when it is more expensive than gas plants but that varies by location. Your argument that it always is more costly to build 2 types of generation is nonsense and anyone with a modicum of business sense would not accept your argument when the numbers show the opposite.
https://www.eia.gov/outlooks/aeo/pdf/electricity_generation.pdf
Just as an example, EIA is predicting that the cost for fuel for a combined cycle plant in 2040 will be $29.43 and the cost to install solar will be $27.40. (Table B1a) That is based on actual production for solar, not the rating on the panels.