Destroying century old forests to replant rows of fast growing trees boost that percentage but absolutely decimates the ecosystem. But let's keep looking at numbers and clap

The question of total forest area and amount of "old-growth" forest are very different. The second is impossible to recreate on the scale of a human lifetime, or even many generations.

A tree plantation close cut every 30 years, usually with huge phyto treatments in between to kill everything, is not remotely the same thing as an old growth forest.