Kidnapping someone is already illegal.
Yes? So they'll get prosecuted if they succeed. But as a free speech absolutist, you won't mind them trying again and again since anything before the kidnapping is just words, i.e. speech.
In the world of free speech absolutism, soliciting and commissioning a crime is fine because that act is just words, i.e. speech.
recklessly inducing someone into physical danger is already illegal.
That's because you don't live in a free speech absolutism society. With free speech absolutism, that wouldn't be illegal because it's speech.
It being truth doesn't make the subsequent kidnapping and abuse okay "because free speech"
And that's why free speech absolutism is stupid.
Your choice of how you define "speech" is new to me. It seems very strange and unworkable. I have never placed the border between "speech" and its "context" so far into the territory of context that context completely disappears from the evaluation and absolutely everything becomes "speech". With that framework, I can see how you would wish to oppose "free speech absolutism", because your framing doesn't differentiate "speech" from context - action, intent, motive, consequence etc. And therefore within your framework the phrase "freedom of speech" is doing some very heavy lifting indeed, bringing with it freedom of action, freedom of intent, freedom of motive, freedom of consequence. Clearly that would not result in a stable social/legal system. To me what you are talking about is not "free speech absolutism" but is some other thing. Off the top of my head I'd characterize the thing you've constructed to argue against as "free speech pan-liberationism", where all things become permissible so long as some form of speech occurs in conjunction with them. I have never met anyone who subscribes to such an expansive definition of "speech". Perhaps your arguments against them have already succeeded.
The reductiveness of your framework is most apparent when you say crime is "fine because that act is just words i.e. speech". Yes, your framing forces that conclusion because it subsumes every aspect of a scenario under "speech", and then, seeing nothing other than speech, all it can do is apply its one and only rule: "Speech must be free". Which is why it doesn't seem like a very useful framework for evaluating scenarios or arguing where the boundaries should be. It contains only one axiom and only one category of things to apply that axiom to.
With my shaved head and saffron robe on a busy downtown sidewalk, you walk past me. I hold out my bucket and say, "Please give me $100".
In grimy clothes and unwashed body reeking of alcohol, I stumble up to you in a busy tourist area and mumble, "Please give me $100".
In a dark deserted alley I walk up to you and say, "Please give me $100".
As you load your purchases into your car in a Walmart parking lot I jump out from behind another vehicle with a gun in my hand and say, "Please give me $100".
On your Facebook post restricted only to your friends, you say, "George W. Bush needs to die".
From your cave in Afghanistan you broadcast a video to all faithful Muslims with the fatwa, "George W. Bush needs to die".
At your Seattle militia gathering you hand a gun and $50,000 to an undercover FBI operative and say, "George W. Bush needs to die".
I am at a Red Bull booth at a public festival. You walk by. I offer you a cup of liquid and say, "You should drink this".
I walk up to you on the street and hand you a bottle of unmarked liquid and say, "You should drink this".
My name is Jim, we are in Jonestown, I hand your 8 year old child a cup of red liquid and say, "You should drink this".
You're at the ER for abdominal pain. The doctor thinks it's an ulcer and prescribes a liquid medicine to lessen your discomfort while you wait. The nurse comes in with a bottle and says, "You should drink this". Unfortunately for you, the nurse misread the order and grabbed the wrong medication. Also turns out you had appendicitis instead, and two hours later you're dead.
Within each scenario the act of speech is exactly the same. Your framework - which subsumes all other considerations under its broad definition of actions which count as speech - therefore has no choice but to conclude "If you believe in freedom of speech you must equate all these contexts, intents, actions, consequences, etc. and that all of these are equally permissible because 'those acts are just words i.e. speech'." Therefore your framework lets you cast the discussion as "free speech absolutists believe you can cause harm with impunity because you used words while causing harm".
I have known many radical "muh freeze peach" folks, but I have never met anyone who thinks all the above scenarios ought to be classified as - and evaluated for legal culpability as - merely acts of speech. That doesn't mean they don't exist, of course. But to me it seems like a strange choice for things to argue against; it'd be like making scientific arguments to disprove the totemic animism of an isolated village in New Guinea. You'd be correct, of course, but... uh. Okay?