Um, okay.
3% of GDP represents 1/2 of our durable goods manufacturing (6% GDP) or 25% of all manufacturing (12% GDP.) That you feel this is not significant explains a lot.
You're just helping my point.
You said that individual tax cuts would not help due to the fact that our consumer goods are largely manufactured overseas.
1.) I'm not sure why talking about what percentage of US GDP comes from manufacturing would matter. You were talking about the percentage of our expenditures that went overseas. Clearly, money spent on US manufacturing would largely stay in the US.
2.) Even if your numbers were entirely applicable, it seems unlikely that spending trends in a sector that comprises 12% of GDP would equal "money spent largely flowing out of our country".
I actually agree with you that individual tax cuts are not the best form of additional stimulus, but your argument doesn't make sense.