DHH has great instincts when it comes to programming and technical projects, but he is not a very smart guy about anything else. Further, he is a bit of a low class buffoon. So just use his stuff and ignore whatever else he rants about on his own time and property, this is the only way to get by in life. You couldn't read a book, watch a movie, or enjoy any music, if you constantly had to vet the authors against your own political views.

Totally agree, you can respect the quality of someone’s work without needing to buy into everything they say or do outside of it. I also don’t get where this purity test comes from, but it’s definitely not a good thing.

In this case it's hard to separate the art from the artist. DHH wields significant power in the community and industry. Shopify is likely to back him and they are a major ruby / rails sponsor. He also has immense influence.