That is your opinion based on processes which are economic in the current situation.
No, it is not an opinion. It is a well established fact that current agriculture is highly dependent on fossil fuel inputs. It's not just a matter of economics.
This is easy to verify by a quick internet search but for the lazy,
this is a good startThere are simply no methods currently to produce biofuels on a large scale without large fossil fuel inputs. Period. Full stop.
It is your wishful thinking that mythical "3rd gen" biofuels will allow that but you've offered no evidence of that.
There are lots of what ifs and maybes and other manifestations of hope that somehow, someday, technology will rescue us from this predicament. There has been intensive research for at least 40 years to find a biofuel substitute for fossil fuels. So far there has been nothing scaleable. Could it happen, sure it's possible. So is a breakthrough in nuclear fusion, battery technology, etc, etc. If wishes were horses...
fuel consumption also needs to go down.
Yes. Absolutely it does. And it will go down, way down by necessity - and with lots of kicking and screaming along the way....