If killing fish is a problem, then anyone who kills them becomes, by definition, part of the problem.
Likewise, if using gas is a problem, then anyone using it becomes, by definition, part of the problem. Albeit, a smaller part but, none-the-less, a part.
When the smaller offenders mock the bigger offenders, it becomes a matter of degree. Monks in Tibet would have very small need for refined gasoline.
And vegetarians seem to survive.
I make no excuses and cast no stones. Drive whatever you feel you need to for whatever reason. I'm okay with that. But be aware, they all burn hydrocarbon fuel. Even the electric ones get their power from somewhere.
Godspeed,
Bob