You are most welcome to google "UK arrest for criticizing" and find articles you consider less biased. There are so many to choose from

EDIT: This reminds me of a Russian person I used to work with. He truly believed that elections in all western democracies were fake and rigged. That is you go and vote but the vote is predetermined. This was a long time ago but I think it was some story told in Russia about the west (basically how the west is not really free) that stuck as an unshakeable belief when he left Russia and moved to the west. This was about 40 years ago give or take. People can hold weird beliefs and conspiracy theories (like people that believe the earth is flat) and those beliefs can not be assailed with logic or facts.

The reality is(?) that western democracies with all their flaws are better than authoritarian regimes but a person can not grasp the entirety of reality. One can always find examples where people are treated unjustly or unfairly in western democracies and ofcourse one can find examples of people being "ok" in authoritarian regimes. The key is to apply the scientific method to the question vs. relying on anecdotes but the human mind is not really wired for that.