Aman Singh ji, don't you cut your nasal hair or do you tie it in a goot once they come out of your nose? What about pubic hair? Do you tie a knot down there?
Why everyone stops short of keeping hair as Guru's Hukam? Hukam also includes honest life, respect towards women, etc. How come one of the states with MOST hairy people like Punjab is also the most corrupt, has highest female foetecide, dowry and racism. Looks like Guru's hukam didn't filter out of the hairy Bush that you endorse.
Although I do cut my hair, and have done so for 15 odd years, I find your reasoning quite odd and childish. I have never cut my nasal or pubic hair, I have never had the need to, I suggest you contact the Guinness book of records and see if you can get an entry, certainly if you have enough to tie a knot down there.
As much as your argument is quite immature, 'why are the hairiest people also the most corrupt', unfortunately, it does carry some weight, the answers are known to us already, in a mire of confusion, and with little decent leadership, Sikhism is going through a change, the people you speak of certainly exist, but Sikhism is not limited only to the Punjab, what you are describing is Punjabi culture, not Sikh culture, your argument does not carry so much weight when directed at say 3HO converts in the west, or all those that seek harmony with Creator with the hair as a side effect, a sign, an outward facet that shows the world, I am a Sikh, I am in harmony with Creator.
Too many have the hair, but not the heart, it is tempting to persuade them to do away with the hair, sure, one less turbaned Sikh, but also one less bad ambassador for Sikhism so that people like yourself who only look at the bad, and laugh from the sidelines, can have one less excuse to be part of the problem rather than the solution.
However, this must never happen, We must forgive those that do not have the heart, We must encourage understanding, We must hope such people at some point educate themselves, at some point yearn for Khalsa, We must never stop working towards this rather than join the ranks of the those that would stand by and watch the fun.