BJP

If your ideology to begin with is wrong, definitely you will get a leader who is horribly wrong. So to say that Modi was the undoing of BJP maybe placing too much importance on Modi. The fact is BJP originated only because there were some who believed it is better to be a slave of the other than be an equal with your own.
So from the very beginning we had this set of aspirants, who thought nothing that is Indian can be worth pursuing, run away from everything that is yours, for what is yours is likely to hold you back.
Are human beings supposed to forgive or