Some idiots don't even know how to talk or act in social media, especially at topics like these. That comment was 20 weeks ago, this is an absolute hunt going on in social media, probably in vengence mode for their bigots at the M.E.
The comment is more(or completely) sarcastic than a threat though(as stupid as it is), and I don't know if that reply was complimentary to the comment or a take at the commenters stupidness, that emoji has more than one meaning lol(it is also used as a sarcastic "awesome", if I'm right).
Most Indians don't know how to make a joke without crossing limits, add that with the confidence they get in the Internet. Maybe people shouldn't use social media if they can't be clear on what they say or don't even know how to be civil.