True freedom of expression is not ingrained in Western culture, that's a myth. In Europe and in America as well, you either get your platform taken away or possibly face prison time when you say antisemtic stuff, when you say anti-black things, when you say hateful things, etc.

Where and who is arbitrarily drawing the lines for what constitutes permitted freedom of speech?

And, of course no-one (except fringe extremists lunatics) is saying execution of the cartoonists was an appropriate reaction to insulting cartoons.