The time has come for China to play a bigger and more responsible role in the world, by becoming more involved in the national affairs of every country. China must follow what the Americans are doing to be seen as being responsible. China just have to follow the footsteps of the Americans, learn from the Americans and do what the Americans are doing.
The first thing China must do is to get involved, meddled in the domestic politics of every country. Put a finger into everything and stir up shit in other countries. But before doing that, let's take things one step at a time. Before China starts to poke into every country's domestic affairs, start cautiously with the USA. Test the water, test how it works. China could start by supporting the rights of the native Americans, supporting the the victims of white racism against the blacks, the Latinos, pass laws to protect and support these groups of oppressed Americans. Start to set up agencies and funds to work with these people in the USA.
The next step is to send its military forces overseas, to sail the seven seas to threaten and bully any country that does not agree with China. Set up more military bases overseas, including highly toxic biological weapon labs in other countries, to be used as threats against any silly little countries that would try to be funny with China, would not listen to China, twists their arms to buy Chinese military weapons, forces them to take sides between the USA or China. This is standard SOP of the Evil American Empire.
As for internal insurgents from minorities, China should take a piece out from the American history book in the way they decimated their native Americans, by attacking them and spreading diseases among them. Once their number is small enough, allocate some waste land as reservations and march them into these waste land to pass their dying days. The Americans would not be able to accuse China of such genocides as China can openly quote the examples of the native Americans that were genocided by the Americans. The Americans did it, we are just follow the examples of the Americans to be a responsible country.
China can also set up training camps, use Chinese agents and agencies to support, train and finance terrorist organisations like the Americans and use these terrorist organisations against countries that are unfriendly to China.
China must be prepared and ready to use its military might to start wars and support wars. Only by doing so would it gain respect and fear from troubling little countries that think starting a quarrel with China is harmless.
China must be like the evil American Empire to be seen as responsible and feared as a super power. Yes. learn and follow everything the Americans are doing. Get involved, meddles and interferes into every country's domestic politics, support dissidents in the name of democracy and human rights.
The most important role of China would be like the USA, become the policeman of the world, to stop countries that ferment wars, incite wars, threaten wars, starting wars with countries using wild allegations, even fabricating false evidence. Such warmongers must be stopped to maintain and protect peace in the world.
That's the way to go. China would then be seen as a responsible big super power, like the evil American Empire. To be feared and to be taken seriously and no silly little country would dare to pick up a fight with China. To be a responsible super power, China must do what the Americans are doing, imposed trade and economic sanctions on enemy countries and cripple the economies of these countries and blame it on the incompetence of their govts. For a start China should close its market to UK, Australia and Canada and see how long can they afford to attack China and be nasty to China. No investment from these 3 countries, no trade with them, no buying of their products and raw material.
The Americans have set all the examples and ground rules to be seen as a 'responsible' or rogue superpower. China's policy of non interference in another country's domestic politics is not well received and should be abandoned. Smaller countries respect super powers wielding a big military clout, not by being nice to them, by non interference. This non interference policy only gets disrespect from the smaller countries as a toothless and useless tiger and could be bullied. Be like the Americans, carry the big stick and see if any small country would still dare to throw their weights around in the South China Sea. Just whack the daylight out of them like a big super power should, like what the Americans would do, to keep troublemakers away.
PS. To become a responsible superpower in the likes of the USA, China must be prepared to start wars everywhere, intimidates, bullies and threatens countries that it declares as enemies. Being nice and not interfering in other country's domestic affairs, not fighting wars, is seen as being irresponsible by the lying and warmongering USA and its equally trigger happy allies.