Maybe. To me this article is useful because it precisely bounds the size of the group that genuinely feels this way. 13%. Not that large, really. Could a determined company get rid of half of those, sending a strong message to the other half to get back to work? Yeah, definitely. Could you refuse to hire people with these views without significantly losing out in the market for skilled employees? I think so, especially as they skew young (i.e. inexperienced).

It wasn't really clear before how large this group of radicals is because they are so aggressive and noisy. But they're a small minority.