Mahatma Gandhi wanted the Congress to be disbanded so that this political outfit should not take undue advantage of the sacrifices of millions of Indians for National freedom. Instead of respecting his instruction, Congress went on to seek and benefit the sympathy votes over the killing of Mahatma. This kept congress in the power for many decades.
The next trade was over the killing of Indira Gandhi and subsequent massacre of Sikhs in New Delhi. Congress party milked this communal carnage to the hilt. Seven years later it has repeated the trade over killing of Rajiv Gandhi and traded his death for votes. In between, it is the congress which started the culture of giving party tickets to the spouses and family members of bereaved party leaders to gain sympathy votes. So who is the real merchant of death here?
Sonias remarks were not really against Modi. She was actually referring to Gujaratis main occupation of trade. She was sating to Gujaratis you are not just traders, but traders of death. It is clear that she hates Hindus and particularly Gujarati Hindus.