That works if you're a CEO of a company and don't have shareholders to respond to, or your shareholders also think alike.
If you're a lowly employee with a family, doing some open source or blogging or whatnot on the side, and that side activity attracts the wrath of professional victims? You're suddenly in risk of significantly derailing your life (and that of your family!), possibly damaging it permanently. So you capitulate, just to survive.
This is why you be pseudonymous. If you're a bigot, it doesn't really help you (people will still stop using your stuff, and your pseudonym will gain a bad reputation), but it protects you from short-term reputation hits due to misunderstandings (like this one).
If you're a lowly employee with a family, doing some open source or blogging or whatnot on the side, and that side activity attracts the wrath of professional victims? You're suddenly in risk of significantly derailing your life (and that of your family!), possibly damaging it permanently. So you capitulate, just to survive.