Hating parties and persons without proper reasoning has become a fashion for all. When UPA is heading the government with outside support of CPM/CPI/RSP etc. it is very clear that they should not take decisions without full support of their supports. It is a major decision - not only a question of more power only.
Their outside supports have clearly told congress in clear terms that they will oppose it and vote against it. Congress should have not gone to SP when they opposed them and exchanged ' all possible words' in the past. To gain power, both are playing game, blaming BJP or communists is not right.