Your questions are loaded. You're doing the religious person thing of "Well you don't believe in Jesus, so what do you believe in?" Just because I don't believe synthetic hydrocarbons are a good idea doesn't mean I have to have a replacement.
Synthetic hydrocarbons may be the stepping stone civilisation needs, until a better way of storing renewable energy at grid scale is invented. If you don't like them for unspecified reasons, and don't propose a viable alternative, you're not contributing to the debate.
