There is a difference between discussing a topic in a respectful matter and repeatedly shouting hateful slogans.
Furthermore, hate speech is actually illegal in some countries and sites that host hate speech can get legal troubles. Here's a quote from Wikipedia.
In some countries, a victim of hate speech may seek redress under
civil law,
criminal law, or both. A
website which uses hate speech may be called a
hate site. Many of these sites contain
Internet forums and
news briefs that emphasize a particular viewpoint.
If you are not actively working to get this site shut down, you'd avoid hate speech and engage in civil, respectful and insightful discussions - which is the true goal of these forums.