“Private company” is not a magic phrase that makes you unaccountable for your actions. And governments already spend everyone’s time, money and resources to require companies to unwillingly serve protected classes.
> Is that really a standard you want to set?
Yes. What is the standard you want to set? Do you want to allow monopolies to discriminate you because you are of wrong ethnicity, gender or nationality? Do you want to live in a world where you are unable to connect your house to utilities because you are Indian or a woman?
> Am I required now to host your articles on my personal blog?
No, nobody cares about your private blog. It is not a monopoly whose market cap is comparable to the combined market cap of all domestic companies in Netherlands.