Actually you are right the video is not making fun of religion.
you are right lets move on. I cant bother
What you don't understand (and that's sad) is that there is a difference between mocking a religion and having someone religious make a humoristic video. In this case, the man in question is just trying to disprove that E ain't MC^2 by a stupid explanation/demonstration.
But is this making fun of religion? No. Anyone open-minded enough would clearly see that the only purpose of the video is to make us laugh about the explanation/demonstration that is absurd. But nobody right in his mind would make fun of the religion because literally anyone from any religion (or non-religious at all) could have made a similar video and we would have laughed for a similar reason.
Religion has nothing to do in the context of this video, period. People don't laugh because of the religion. They laugh because of the explanation provided by the man on the video. But nobody would extrapolate.
So please, stop dramatising about everything. You just don't go making random claims without expecting a response from people who think otherwise, specially when you are speaking directly to them and cannot bother to provide a valid argument. If you cannot justify or don't want to get involved in a discussion then you just don't reply, simple as that.