Zheng He's fleet reaches Europe and finds that the Christians are already bloodied and weakened by internal conflicts. How would this change 15th century Europe?

Old posts say that this was 1470, no, he reached Eastern Africa by 1410. He is Chinese, he would stop in the Middle East, and would continue into Europe. If he got there, he would find Europe in the midst of a 3-way war between England, France, and Burgundy. England is in the middle of a civil war, the Catholics have gone schismatic, there is an Ottoman Empire that just conquered Constantinople, and the Teutonic Order is losing against the Commonwealth. Because of this, the Chinese would reach the continent of Europe, they will ally with Portugal, Poland, and Bohemia, for those nations are the least in conflict and they have sea access. They will invade the Iberians, the Italians, the Holy Roman Empire, the Teutons, the Ottomans, and the Prussians. They will also send agents into England and France. In the aftermath, Italy will become a vassal, the Holy Roman Empire will be broken into independent kingdoms, the Ottomans will be crippled, Prussia will be gone, and the Teutons would be forced back into Germany. Iberia would lose all of its possessions outside of Portugal. <br><br>England and France will have crippled governments, they will be forced to allow Calvinism and would be severely weakened, they would not interfere with the rest of the war. The Chinese would be leading the charge in the Thirty Years War, they would be the ones to sack Rome. Poland would be the strongest nation in Europe along with Bohemia and Portugal. Germany would be dozens of kingdoms united under the King of Bohemia, the French would be on the brink of collapse, Prussia would be part of Poland, the Mediterranean would be owned by the Portuguese, and the Ottomans would be severely weakened. The Chinese would destroy the King of Jerusalem will and use it as a casus belli to establish a vassal state in the Levant. <br><br>This is what would happen if Zheng He reached Europe.