The video in a link is a 2 hour deep dive into problems with the science itself.
There isn't much about altruism in it, but I hope it's allowed to post here as I tagged it in "Philosophy" section and EA is based on science.
By posting it here I'm trying to start a discussion about this topic as I think Kehlan is touching some important core problems with science methodologies.
One of his main arguments is that science as a general approach of understanding reality is reductive in itself, meaning it is trying to limit variables, while the world it tries to understand works as a holistic entity, something à la Mach Principle, therefore science cannot really give answers to many profound questions, however it tries. Hope you like it!
I understand that you didn't like the way he speaks, but giving down vote without watching the whole thing seems to be bit unfair. In second part he departs from talking about replication crisis and dives deeper into the topic. I'd recommend watching it full before giving it a review.