Earlier quoted context omitted.
Again, good! We want more sources of energy to emerge to replace fossil fuels. If burning carbon becomes more expensive, then hydrogen, nuclear, wind, solar, etc. become more competitive.
I think you missed the point. When one cartel dies, there isn't immediately a beneficial alternative. Much like in this case - if Shell leaves, there is nothing that automatically means the new actor who fills that role will offer hydrogen, solar, etc. Least friction means the new actor will just be another petroleum company. Viable alternatives need to be in place and/or ready to immediately deploy, I think was OP's…
Emission Trading Schemes put friction on another petroleum company.
https://en.wikipedia.org/wiki/European_Union_Emission_Tradin...
https://en.wikipedia.org/wiki/Chinese_national_carbon_tradin...