3 - I used the term totalitarism for China because of the lack of individual freedom for them. I believe you can compare then to those old cold war countries because the only difference is that they introduced capitalism for instances where it was good for the government. There are a lot of chinese people living in Brazil (like in other countries) and you can[t help but feel sorry for the things their goverment does the their people. Forcing athletes and manipulating them like puppets is a well know fact. I don't think calling them out for this is racism. Not at all.
First of, even though the Eastern Block countries were dictatorships, they were not necessarily totalitarian. That applies to some of them during certain parts of their existence.
Secondly, Chinese society, though far away from western liberal democracy, has a larger degree of freedom than Eastern block countries, and the prevalence of the Communist apparatus has been steadily retreating. It's that which can lead to Totalitarianism, not the grip on power of one party, but the shaping of society in the image of the party and its leader. That was something Mao tried over 40 years ago, and he failed.
If you would follow the news, you would be able to see that individual rights and accountability of the State are on the rise in China. It's a long and arduous process, for countless reasons. One of them being that the Communist Party is trying to advance measures that go towards individual rights as a means of legitimizing their leadership, e.g. "we are the only ones that can combine social progress with stability". It works at this moment, but of course will lead to problems in the long run. Again, that process is leading the country in a direction opposite to totalitarianism, it's a continuation of the anti-Maoist policies started unter Deng Xiaoping.
Thirdly, I wouldn't believe everything that members of the Chinese diaspora say, be it either pro- or anti-mainland. There is so much propaganda out, from either sides, and it reflects views of the overseas Chinese even though many of them have never lived in China.
There are legitimate ground to be suspicious of China and its sport programm, but if you want to make a statement on China, read up on it first, and don't just spout some BS you found on a website that reads "CHINESE CLONE BASKETBALL BABIES, FEED THEM HEARTS FROM ORGAN TRANSPLANTS"