You have only listed the minor blunders of this idiot Nehru. The most historic blunders this mad man committed are:
1. Referring the Kashmir issue to the UNO at a point when we were actually winning the Kashmir war - we would have had NO Kashmir issue, NO POK today if Nehru had desisted from referring the matter to the UNO. 2. Declining the Permanent Membership in the UN Security Council and gifting it away to China (Can you believe this - yes, he did it) 3. Foreign policy goofs like Hind-Chini-Bhai-Bhai which eventually let China surprise us by a humiliating invasion and defeat (resulting in thousand of square kilometers of Indian territory coming under Chinese occupation) 4. Embracing a public-sector driven socialist model that set India back by at least 50 years (we are still catching up on the economic front)
We can just go and on and on....
My vote for the most stupid PM we have ever had will go to this moron whom we Indians tend to worship as a sort of demi-god.