If freedom of speech is so limited, does it even exist as a freedom anymore?

You could say I have the "freedom to take anything I want" except I mustn't take anything that belongs to somebody else. Do I really have any freedom with that restriction in place?

Personally I don't think we have freedom of speech (in the UK, certainly legally we do not). You have to be careful of what you say and who you say it to. Maybe that's OK, and free speech was a failed experiment. But to claim we have that freedom whilst restricting it thus is just wankery.