It's been difficult to take anyone seriously that has a problem with people they label as "Social Justice Warriors". Also, this isn't the sort of rhetoric I enjoy seeing on HN.
It's important to note that they also specifically called out the President-Elect for his Climate-Denying statements.
Him being racist – and a denier – make this incredibly important.
Why is this important? They are in a position of scientific authority, and they are opposing a position of government authority. He is incorrect, he is ascending to power, and this sets their authority against his authority.
This is about who you trust for your information and who will help shape your opinion. An esteemed educational institution, or a racist demagogue? Sounds to me like you've already made your choice.