Would that be the same bleeding heart liberals who take offense on other people's behalf and look to punish those "who stepped out of line" (quotation marks as only some have stepped out of line, not all)?
I can't speak for everyone who agrees with me and only for myself. However, I in no way defend what this person said, did or thought. He deserves to be ridiculed, argued against and, if he doesn't change his mind, he deserves losing friends and social circles. But that doesn't mean that he should go to prison. Isolating those who hold these opinions, hiding their views from the public will not make them go away.
Freedom of speech is one of the absolute foundations of our western society. Without that most of our other rights go the way of the dodo. I believe it should be defended, and since the government can hardly be trusted to fairly and justly classify what should be allowed and what shouldn't be allowed the best course of action is to allow as much speech as possible. The obvious exceptions being threats and encouraging violence.
And this isn't an isolated incident of freedom of speech being infringed upon in Europe lately. An English (I believe) historian is currently in prison in Austria for denying the holocaust. I believe he's wrong, he's probably insensitive although I haven't read his works but he doesn't deserve prison. Ireland now has laws outlawing blasphemy! Absolutely laughable, and goes a long way towards showing that many European countries should get freedom of speech into proper laws and regulation sooner rather than later.