It's all good. If it can ignite, expand, and push a piston connected to a crank, I'm indifferent to its chemical make up or origin is.

A stump pulling torque monster is a stump pulling torque monster in my book.

Again, think top fuel dragsters....do we care that they're burning something that doesn't resemble what we burn in our cars?

I'd rather give my $4 a gallon to an American farmer than an OPEC bazillionaire who might be funding some fundamentally confused zealots with all his superfluous cash.