You can get court transcripts but (just like the USA) you have to pay for them. Things could be improved, but in no way are normal UK court cases secret as you claimed. You can also visit the courts and watch cases from the public gallery. You're basically wrong and doubling down on it, for what reason I cannot say.
My friend, please don’t act like an expert when you happen to be talking to one…
Magistrates court trials are not recorded so no transcripts. So a malicious prosecution is easy to pursue.
When one files for a transcript in courts that are recorded, the transcript is first sent to the Judge and the judge is allowed to change anything they like, with no transparency. They can also refuse a transcript if they feel like it.
I’m not going to respond any further to you as you for some unknown reason are talking about things that you do not understand…
Have a good day.