He was arrested for political speech, which is ipso facto an unjust violation of his fundamental human rights and of natural law. Putin's Russia also has "laws" that justify the arrest of dissidents, doesn't make it OK. (And many of the other people on Lira's list were simply summarily executed, without any trial or other legal process)
Are you aware that Ukraine engaged in an existential war? Gonzalo Lira was justifying Russian aggression against Ukraine, denying the facts of Russian missile strikes on Ukrainian cities, as well as massacres of civilian Ukrainians by Russian invaders in Bucha and other cities.
Then he was taken into custody because he violated the terms of his bail and tried to escape. Originally meant to be under house arrest in Kharkiv, Lira was detained in another part of Ukraine: Zakarpattia Oblast, where he tried to cross the border into Hungary
There are a number of real journalists in Ukraine investigating big corruption cases, some of which have even resulted in the replacement of the Minister of Defense. These journalists have not faced assassination or imprisonment, although there have been instances of them being pressured in some ways
It seems you apply US laws to the rest of the world. Ukraine is not part of the US, it’s a part of Europe. In Europe, the legal systems are rather different.
For example, public display of Nazi symbols in the US is a protected free speech under the first amendment. However, the same action in many other countries is a crime: https://en.wikipedia.org/wiki/Bans_on_Nazi_symbols This doesn’t make governments of France or Belgium “thuggish regimes”.
He was arrested for political speech, which is ipso facto an unjust violation of his fundamental human rights and of natural law. Putin's Russia also has "laws" that justify the arrest of dissidents, doesn't make it OK. (And many of the other people on Lira's list were simply summarily executed, without any trial or other legal process)