What good does a demanded apology do?
If an offensive person thinks he needs to apologizes, that's great, and good feelings abound. An apology issued in response to a demand has no sincerity behind it, so what is the point? But lefty/liberal types are always "demanding" an apology anyway.
Of course, we know it isn't about smoothing over hard feelings. An apology shows weakness, and the weak can be attacked. That's why the lefty/liberal types always "demand" an apology.