He's using capitals to specifically show intense emotion. Violent doesn't always mean physical violence.
At any rate, none of this is any kind of woke words-as-violence drama; it's a word being used in a colloquial sense that people here happen to have an unproductive hair trigger about.
https://dictionary.cambridge.org/dictionary/english/violentl...
>They are violently opposed to the plans.
"he coughed violently"