Your argument is a strawman basically. You think by pointing out isolated cases of violence in the history of Hinduism you will be able to somehow justify the endless genocide in Abrahamic religions.
This argument is almost as bad as showing that if you can point out that somebody has commited a petty crime, then it is equivalent of commiting the most henious of crimes.
Clearly things are not so black and white. Violence can be measured on a spectruum. A few cases of wars and exaggerated isolated cultural practices is not at all eqiuvalent to 2000 years of endless death and destuction where billions in the planet have been put to death in cold blood in the inquisitions, crusades, witch burnings etc And if you think it is we should stop this discussion here.
The Gita is set on a battlefield in a war between kingdoms and I already said at the start that of course wars took place in ancient India. The reason for that war was not however religious crusade, or the killing of non believers, it was between kings for kingdoms. In this particular war, it is between the Pandavas and the Kuruvs, who are cousins but the Pandavas have been robbed of their entitements(they are entitled to the kingdom legally) and they are fighting to reclaim their land. These wars that took place also took place in an honorable way miles away from the civilian areas, and there was a warrior code of conduct as well. For example, there was rules that there would be no war during night, each of the armies would retire to their camps after a day of fighting. Fights would only take place between equals on the battlefield and they would be 1 on 1. You could not hit somebody from behind, you had to fight face-face.
The battle of Kalinga by Asoka was also not fought for religious reasons, but once again between kings for kingdoms. It was a terrible battle between the Asoka empire and the Kalinga republic. Asoka was so moved by the aftermath of the destruction on both sides that he later adopted Buddhism:
As Ramesh Prasad Mohapatra remarks, "No war in the history of India as important either for its intensity or for its results as the Kalinga war of Ashoka. No wars in the annals of the human history has changed the heart of the victor from one of wanton cruelty to that of an exemplary piety as this one. From its fathomless womb the history of the world may find out only a few wars to its credit which may be equal to this war and not a single one that would be greater than this. The political history of mankind is really a history of wars and no war has ended with so successful a mission of the peace for the entire war-torn humanity as the war of Kalinga."[6]
So even the few cases of violent episodes in Hindu history you can point out actually have honourable qualities. Even to what are considered to be evil kings in Hindu history, like Duryodhana, what the Abrahamics did would be considered deplorable and henious beyond the imagination.
The Abrahamics killed innocent men, women and children simply because they saw them as inferior beings because they had other religions and this terrible bloodshed was done systematically over 2000 years. Wherever they found pagans, they slaughtered them in cold blood or tortured and raped them. They merely had to just turn up on the shores of a foreign land and if they found pagans they would immediately start slaughtering them in tens of thousands at a time with glee. There is nothing even remotely close to this in Hindu history. In fact, as has already been pointed out already with citations, Hindus never subjugated the people of their colonies outside of India. They had colonies all over the world and there is no single record of violence against the natives or a suppression of their traditions and beliefs.
So sorry Hindu history simply is not even remotely as bloody as that of the Abrahamics and you are fooling yourself if you think it is. Not only are you having trouble labelling a spade a spade, you are also having trouble giving credit where credit is due.