That's not analogous. Brendan Eich materially supported a current threat to freedom. A few decades ago it would be as if you were writing checks to an anti-miscegenation organization. At time, plenty of people would have said "What's the big deal? It's a valid opinion." and yet it is just as clear that's wrong.

Plenty of people on this forum have radical political philosophies, ranging from anarcho-capitalist to communist. Some of them are probably far more radical than Brendan Eich, who might be utterly mild in his politics otherwise. And yet because they are not speaking out against individual rights, all these bomb-throwing radicals coexist.