I mean, that probably depends on how extreme are the views? If you write a blog post about there being too many colored people in London, how are non-white developers supposed to collaborate with you?

Perhaps by minding your own business and focusing on the work? Nobody is forcing you to view that person's blog or to even know it exists.

If that individual's viewpoints somehow visibly leak into their work or professional communications, then you might have a case for complaint or concern.