I regret he took his life instead of legitimately fighting the system of intolerance.
I regret it as well of course, but unfortunately not everyone has the temperament of a fighter in a context like this, and some are constrained by a lack of available options. For some, it seems, the spectre of a massive Leviathan bureaucracy coming down around their shoulders with an utterly insane, Orwellian and Fascist law which can for all intents and purposes destroy a person's career and life is a pretty overwhelming thing.
I'm guessing that he felt very, very alone. Here in the USA there are a variety of organizations, including entities that practice law, which could have aided him in a circumstance like this. I'm not aware of there being a similarly wide array of options in place to fight these Thought Crime allegations in the UK.