Your post is very misleading. You are lumping Biodiesel and Ethanol as the same biofuel with the same output in carbon dioxide and for the same uses, which is ABSOLUTELY wrong!
Three facts you forgot to mention:
1.) Most Biodiesel (which is not Ethanol) is produced from recycled vegetable oil harvested from restaurants from the fryers.
2.) Biodiesel can be made from animal fat.
3.) Biodiesel can also be made from algae.
All THREE reasons above will not lead to deforestation. In fact, the creation of BIOdiesel (not Ethanol) encourages recycling of used vegetable oil instead of being dumped in the sink or on the land.
More importantly because of the demand for biodiesel to run vehicles or other uses for it creates a market for it instead of throwing the waste product away.
Please check this link on the advantages of using Biodiesel (again NOT ethanol)
https://steemit.com/nigeria/@jenny123/what-is-bio-diesel
Please get your facts straight before making a conclusion on biofuels. Keep ethanol and biodiesel separate.