Living in south India, how do you know Hindu support these terrorists? Hindus are the weakest but rich community in Karachi. There is absolutely no hindrance in terrorizing them and force them to say Jay Altaf Hussain.
In 1991, ethnic riots with Sindhis, Sindhi Hindus were the most targeted community by MQM. MQM called strike in Karachi, the famous mithai wala also known as Dewan from Shikarpur Sindh opened his shop (Sun Shine) at Tariq Road. Poor guy was an old man of about 75 years; he did not know that MQM terrorists had called for the strike on that day. At about 11a.m two or three MQM goons entered his shop and opened fire from machine guns killing all the employees and that old legendary mithai wala from Shikarpur (Sindh). The poor guy had nothing to do with any ethnic group or political party. Do you think people will forget that kind of brutality? Can you?
I do not want to answer the first question Sherdil Bhai due to some reasons.(Let's not touch that topic :) )
I may not be able to counter your statement about how Hindus suffered during 1991-92 riot period .May be the incident you described above was an isolated incident.It's quite natural that during that time,in both India and Pakistan ,minorities were attacked.In India,sadly,muslims were targetted.
But later MQM could surely win the hearts of atleast some sections of Hindu community.