The world economy would have undeniably have been less affected due to the avoidance of inefficient and ineffective lockdowns, but there would have been, if anything, more worldwide deaths due to world leaders delaying travel bans. China would have also been criticized far more for turning Wuhan into a giant prison both for citizens and foreign visitors, as well as for failing to prevent the pandemic for going global. It is known coronavirus was in northern Italy from mid-December onwards, nearly a month before the first recorded coronavirus death in Wuhan, and about the same time the Wuhan pneumonia cluster became notable. This was also two months before the north Italian outbreak made it into the world’s front pages. In order to prevent the pandemic from going global, China would not have merely had to prevent the Wuhan outbreak, it would have had to do contact tracing in northern Italy, France, and New York throughout December and January, something the leadership of these areas would likely have not permitted it to do. It would also have had to destroy the Western anti-mask consensus on its own, and to convince the Western epidemiological community (a pack of rats with the intelligence of bricks if there ever was one) that the pandemic was certain to go global simply due to its form of spread.
Of course, the real China did far from everything right. It opposed travel restrictions on its own citizens, it always verbally supported the deeply flawed and Western-dominated World Health Organization, and, crucially, it delayed travel restrictions, public gathering bans, and attempting to rigorously contact trace and quarantine all those infected as soon as it was aware of the Wuhan pneumonia cluster in December. But that, if anything, reduced the worldwide death toll by making it easy for foresighted leaders like Khaltmaagiin Battulga, Prayut Chan-Ocha, and Luis Lacalle Pou to prevent the coronavirus from ravaging their own countries. Without the terrible Wuhan death toll of January and February, the leaderships of Tunisia, Jordan, Central Europe, and Burma would all surely been much more hesitant about their own countries imposing travel restrictions on Western Europe and America that delayed their own large outbreaks by many months.