Every ideological side feels like the site and the mods are biased against it. This a consequence of ideological passion, not an objective perception. I can give you a long list of links where people complain that HN is biased the other way. Here are just a few:

https://news.ycombinator.com/item?id=20637454

https://news.ycombinator.com/item?id=21316611

https://news.ycombinator.com/item?id=21641004

https://news.ycombinator.com/item?id=21432833

https://news.ycombinator.com/item?id=21231654

https://news.ycombinator.com/item?id=21186128

I'll stop there.