If you start using energy to bond complex molecules, you are using energy, but the energy is getting trapped in chemical bonds. You can easily achieve 3% YoY energy use growth without any ocean boiling in the predictable time horizon.

If you use the energy to finally expand away from Earth, then clearly you can achieve 3% energy usage growth with no ill effects whatsoever.

In the end, the fact of the matter is that civilization evolution is very highly correlated to the ability to manipulate energy, and consequentially to the amount of energy used globally. Locking ourselves out of increasing energy usage is paramount to locking ourselves out of pie-in-the-sky projects such as planet terraforming.