An interventionist China

What if the Qing Dynasty didn't pursue isolationism? If instead, they decided to be different from the previous dynasty, claiming they lost the mandate of heaven because of isolationism. I mean foreign dynasties (which the Qing were) are usually open to foreign, culture, for eg. when it was under the Tang dynasty, it was China's big era of cosmopolitanism. The capital of xi'an had christian, muslim, persian and saudi populations just to name a couple. This was also when buddhism was introduced to china which is basically the last innovation you saw in chinese culture before the european colonization, buddhism filled a similar role to taoism and providing a release from the conformity of confucianism with monasteries to escape the stifling confusion, family and honoring social classes disliked under confucianism like the merchants and women as an overwhelmingly conservative society. This set the stage for other foreign and interventionist rulers of China to use Buddhism as China's state religion, like the Mongol Yuan dynasty. So, basically what I'm asking is, what if Qing China was more like Tang China, and less like Ming China? I personally think it would have avoided the century of humiliation, and possibly been the world's super power.