An argument is a statement with evidence to back up said statement.
You stated that china will be able to outproduce US when it comes to low cost UAV.
@Josh_TN countered with evidence that China does not have a commercial sector to fall back on for economy of scales when it comes to engine production. You simply responded by repeating your opinion with zero counter evidence to the point he brought up. That's not what a sober mind would normally do.
Second, you criticize US for spending billions with nothing in the sky, yet cite European programs that produced no physical hardware in the sky (yet) accept for mockup and desk models. Where's the sober thinking in that?