This is a racist screed. The only information available about that author is that they write for the linked site, a well-known white supremacist publication.
No information about author, and published on a site like that because such topics are forbidden, so I wouldn't say that's a good tool for judging the truthfulness/quality.
Have to look at the details and see if they align with what is verifiable.
Some of the claims can be verified by video footage that is widely available online. Many people will still dispute those claims.
> But doing nothing means whites must condemn their own flesh and blood to the nightmare I’ve described — and we have a duty to protect the future for our children.
I'm not familiar with the idea that it's bad for white people to want a good future for their children? Seems quite racist to me.