For one thing, the formation of Oil, hundreds of millions of years ago, was due to a planetary environment that would have been impossible for humans to exist. The atmosphere was made up of more than double the Carbon Dioxide found today and the most life on Earth, was in the Oceans. (When water covered more of the Planet than it does today.)
The kind of Algae you claim will manufacture all of our energy needs, (And is therefore possible.....[Eyes Rolling]) grew at levels that would not be possible on this modern Earth. You also don't realize the chemistry, or the physics behind the original formation of Oil and Hydrocarbons.
If you are going to advocate something, then make a useful effort to educate yourself fully in the first place. You sound patently and incurably ignorant at the moment.
The only thing I agree with is that the earth used to have more carbon dioxide than it does today. Most of it is sequestered in coal, oil, etc. Then when we burn those things it is released. But the small amount that we are releasing only increases plant growth. CO2 is often, in grandpa's greenhouses, added to the environment to enhance the production of plants, (roses).
I do agree with another post that what ever the gubmint gets involved in turns to crap.