It's "free speech", not "speech free on consequences".
Employee didn't loose his free speech rights. Tesla didn't censor him, they didn't ask him to take down the youtube videos etc.
Employee lost his job because he did something stupid, that reflected badly on the company.
I know that OP was talking about the fact that Musk is a manchild, but I'm more concerned about the fact that he's leading a criminal conspiracy.
You just can't be an employee that violates your NDA by giving insider scoops.
It's also possible that he was let go for reasons completely unrelated to the YouTube channel.
If you want to record videos or reviews of yourself driving current FSD (that's for sale), you are more than welcome to, no one will stop you, and you aren't breaking any rules. FSD Beta is literally a beta tester program. And selective small-audience beta tests for all kinds of products typically carry extra restrictions in terms of what you can publicly reveal as a participant.
https://www.tesla.com/blog/all-tesla-cars-being-produced-now...
https://jalopnik.com/elon-musk-promises-full-self-driving-ne...
Bernal demonstrated the product he purchased.
https://www.newsweek.com/elon-musk-challenges-vladimir-putin...
"Elon Musk has upped the stakes in his proposed fight with Vladimir Putin over Ukraine, telling the Russian president he can even "bring his bear."
The only thing specifically related to Ukraine was Ukraine (specifically their minister of digital transformation) reaching out to Musk via twitter.
Both could be countered by a sophisticated adversary, but the Russian troops may be a little preoccupied at the moment, and their EW teams are probably going to focus on Bayraktar before Starlink...
Starlink have already enabled "Roaming" for Ukraine which involves similar tradeoffs: https://www.youtube.com/watch?v=8PDVURcvWeg (in fact I wouldn't be surprised if the changes enabled for roaming also improve jamming resilience)
Meanwhile, I assume it's far easier to take out Starlink than Bayraktar. In no small part because interference was part of the threat model when Bayraktar's hardware and software were being designed. And they can get a lot of results for less effort with Starlink.