As a Chinese, what makes me feel we are isolated from the outside world?

Many people ask me, are you going back to China after study in Venice?
Well, I really hope I'm not. Here's the main reason:
When I'm in China, I feel a invisible wall between our boarder and outside world. This wall is built up by both sides.

First, western countries tend not to trust mainland Chinese that much, who ever wants to travel to north America or EU state must go through a whole lot of visa application and it's very difficult and costly. Since last year U.S open up a little for us, they extended the period of validity of their visa from 1 year to 10 years to us. It means, once you successfully obtained U.S visa, you won't have to apply it again in 10 years (for tourists), but it doesn't mean that you can stay 10 years long in U.S tho.
On the other hand I understand that it's tricky for EU countries to open up for us, after all we are a huge population, many people are willing to go out, one country in EU opens up, the whole Europe would be flooded by Chinese people, if you know Schengen agreement.
The situation has been improving little by little, more and more countries are offering visa-free entering, while western countries are loosing their restrictions. However, there's still a long way to go till Chinese passport becomes any competitive among all the other passports.
For this reason, I feel myself trapped in China, I feel myself not belonging to the planet, the earth, but only to my motherland, which sometimes can be depressing.

Second, it's from this side of the wall, the Chinese blocked ourselves from outside world. Heard of the Great Internet Wall? Yes, in China you won't be able to use Facebook, Twitter, YouTube, Google etc many main stream website which allegedly  conveying "western value which would corrupt good Chinese value and moral belief". Yes, the government blocked us from the major information from outside, blocked us from "corrupted things" along side with all the knowledge and events. People here are always one step slower than people from other parts of the world. Is it really worth it? I really wish someday something can be changed and the government can be more open about it, there's nothing to be feared, what about democracy, what about communism, who cares? People just want to be part of the world! If you are confident in your reign, don't be afraid of opening your people's eyes. (I would expect a change occurs one day, when some certain political issues are thoroughly cleared, no politicians in power are related to those scandals any more, then they would be okay to break the wall)

That's the two mean reasons why I don't feel like staying in China, thinking about going back to China would be like thinking about a bird goes back to the cage...it's fine to live in a cage, you have food and warmth, almost anything you need, it's just... you are in a cage. True feelings, for a Chinese person has a heart of freedom.