Freedom of speech doesn't extend to other's rights being infringed. Bullying, harassment, and abuse aren't covered under freedom of speech.

Your examples don't apply. It would be more akin to:

"I'm all for freedom of speech, why can't I shout racist expletives at black strangers in the street?"

"I'm all for freedom of speech, why can't I send people abusive messages online?"

"I'm all for freedom of speech, I should be allowed to take photos of people going about their daily business, then encourage a bunch of my friends to be abusive towards that person."

Do you think it is ok to walk down the street and shout abuse at people? If not, then why it is ok online? Or is it only ok when thousands of people shout abuse at one individual rather than one on one abuse?