Is the Left parties concern on the N-deal genuine or mere posturing and should it pull out of the UPA?

Those who voted YES had this to say:
•    They are hopeless people not bothering about the real development of India. Let them pull-down the government and let BJP rule again India with iron hand.
•    Left parties are mere posturing, if financially assured, it finish.

Those who voted NO had this to say:
•    Old habits dies hard so to with leftists.
•    Not genuine concern, it’s purely anti- American and ani-development.

Those who voted MAY BE had this to say:
•    I do believe that they are obviously concern about the deal, but their opposition is more to do with the ideological barrier rather than the deal itself, because this deal is going to create a greater tie between India and U.S. and I don’t think that the left is not comfortable with the idea of India and U.S. becoming strategic partner and I think China is also quietly playing their part behind the scene....
•    They are concerned about the people, and though they are a political party viewed for their anti-capitalist stand, let us also know that the nuclear issue is not about being pro-capitalist and anti-capitalist. The bottom line is that all concerned people should voice against nuclear weapons. How can a country that advocates for ahimsha, support and enter the nuclear arms race.