They would be true to their faith (?) if they practised what they stood for.
In west bengal, they welcome FDI (though after china went capitalist) but oppose in centre. They would kill farmers to provide land to Tata in Singur but instigate the airports employees to strike if their fat pay cheques are slightly threatened.
Two glaring aspects of the commies are a) None of their spokes persons can win an election in a municipal corporation - it is a clear indication of how much congressized they have become by adopting all double faced tactics on secularism, socialism and economic policies.
b) It is now well known that if commies are opposing something, it must be good for the country. Vice versa is also true. So whenever there is a confusion about whether some stand or agreement is favouring India or not, ask the commies. If they say go ahead, avoid it like snake. If they say it is anti India, then the conclusion is obvious.