I agree...that is why we need to question whether it is a good business... 1 in 100 make it or is it 1 in 500 or is it 1 in 5000... those are the odds of companies making it when the business is governed by free market capitalism. This is government backed/mandated/funded business oportunity that can only exist if the government wills it... The thought process of generating ammonia to be transferred around the world for its H2 doesn't make sense from a thermodynamic standpoint...I think you could find an even longer list of fossil fuel companies that have gone bankrupt, think of all the oil and gas explorers, drillers companies etc even petrol stations etc
Just because you can find examples of bankruptcy in a given industry does not mean that the industry is destined for failure, look at the car industry as an example, I think there was 3000 car companies in the USA that went bankrupt in the first 50 years of the automobile, off course that didn't stop Tesla.
Not to mention that most on your list are either installers which like builders will come and go, or companies trailing new tech which offcourse is fickle.
Neither is evidence that sound tried and tested green energy infrastructure is going anywhere, once its installed its basically free energy, its not like I am going to go and rip the solar panels up my roof just because interest rates go up or unemployment rises.