Honestly, I don't know why he lost his temper, I mean he could've easily control his temper and respond to the topic and move on, this is the problem with people who are trying to speak from the Prospect of Islam/Quran, their presentation is something leave to be desired, didn't you learn anything from the Prophet's life? he was among the worse of the worse, hostile, and those who mock him every day? how did he respond? When you are right, and you have God's word with you, you don't have to raise your voice to silences others, your argument speaks for itself.
Now, what I am assuming that KR gets mad at is that this other girl might have tried to mock the 4 marriage rule and abuse of that rule, thing is that people like KR are bad for Islam, and women/girls like Alia are bad for only Pakistan, Islam was/is/will remain the Powerful and keep rising, with or without Pakistan, the problem with these paid Aurat March/Desi Feminists/Progressive/LGBTQ+ flag holders is that they don't understand what they are talking about, they debate uneducated and Jahil Imam's, rather than going to academics or Theologians, to learn about certain issues, just because a certain group of People abuses a certain law/rule from Islam doesn't make that rule/law invalid. Yes, Punish those who abuse the law, misuse it ( Blasphemy/4 marriage/etc ) but under the disguise of that, they are trying to change the mindset of Muslims. Here is an example...
this video is old, but just hear the argument of the so-called Gay Muslim who is very serious about keeping his Muslim identity but also wanted to proudly accepted as Homosexual, just note that how the gay guy keeps using Victim card/Emotional Argument such as Love is love, etc, but what he should be doing is that learn Quran, Hadith, and went to some Theologian who understand/study Islam to know the actual understanding of the topic, but instead, he brought this to BBC talk show to get some sympathy point, this is the exact same thing happening in Pakistan with these Aurat March womem+men who are seen with LGBTQ+ flags, behind the curtain of Social issues they are brainwashing, and debates/clips like that will be used from those so called Aurat march people to show how Religion is outdated and we should be lining with the western progressive ideology so we would be accepted by Gora Shahib, if these women and men really wants that for themselves why is it important for them keep the " Muslim " card while doing it all those which they know will never be allowed in Islam? why not give up the claim of being Muslim and do whatever they want to, be gay or whatever? because by definition a Muslim is someone who submits, so you cannot put your conditions to Allah and then try to amend the Quran or Law as per your will, no matter what happens in the west, east or anywhere some rules and laws mentioned in Quran cannot be changed PERIOD. I hope Pakistan and Pakistan figure something out and come out of this dilemma to put their society on a better path, which the majority of Pakistani support and respect.