Far left has a reasonably accepted meaning. You could argue around the edges, but ultimately you're not going to plausibly extend it to cover the center-left and center-right parties who actually rule most of Europe.
You have subtly moved the goal post from "far left" to "left-wing". Nice!
Your definition also happens to fit Donald Trump professing his love of farmers and minors. If Donald Trump is far-left, have you considered that you may be a fascist?