The "unchecked" in unchecked economic growth just refers to the fact that no one is applying the brakes to this growth, i.e. it's being allowed to continue uninterrupted. This is only a problem when you understand the downsides of continuing with business as usual (mainly linked to the damage to the natural world).
That's not true. I'm sure you're referring to outsourcing manufacturing to other countries, but that's not enough to decouple from environmental load. For example, growth in tourism is not decoupled from environmental load.
it's not 100%, but the strong correlation of economic activity with energy used (and that with CO2 emitted) is definitely getting less and less relevant.
and the EU CBAM (carbon border adjustment mechanism) is finally in force since start of 2026 for 6 sectors, and all sectors by 2030 (and by 2034 there should be no sectoral free quotas)
and environmental load is not just CO2, but this is the main factor (because energy abundance is a prerequisite for a sustainable - actually green - economy)