I would politely disagree with you on the G7 front - its all talk and no action. In the end the people who will suffer for the comments made in the G7 are these journalists. The fact is all that has been done is a bunch of talking. The fact is yes there are things which CCP is doing that is very wrong, and yes they have a very low tolerance towards dissent. However, any comment coming from USA and England makes the scenario even worse. In part this is because the "west" doesn't have a particularly positive PR impression in Asia. Many view the G7 as a group of countries that take their own decisions without consulting others.

For any protest to be successful, one side has to eventually reach a compromise. When the protests first started in 2019 for months they were peaceful. This was actually the time when they were the scariest for the CCP as its very hard to justify any action against them. Heck, I had friends who were PRC nationals who crossed the border to take part in them (just because they were curious what protest was and no other political reason whatsoever, and yes, they're alive and fine right now). The problems started when a few people displayed xenophobia towards PRC which unraveled into violence. At this point it became incredibly easy for CCP to smear the protests back home as all they needed to show in their local media was the few instances of violence against PRC nationals, juxtaposed against images of their own soldiers who were shown sweeping streets. Once England and USA started making comments about the human rights situation it was essentially a death knell for the protesters. This is because in China many consider USA and England's human rights comments hypocritical given that both countries grew economically by exploiting slaves (in USA's case) and colonies (in England's case).

Personally, I don't think politicians making bold statements from countries halfway across the world will help at all. Xenophobia overseas will make the matters even worse. Rather than turning anti-China and uber-nationalistic what would dismantle the CCP is to actually work towards winning the hearts of the 1 billion+ population, majority of whom actually have benefited from the CCP's reign.