What if the Tokugawa shogunate had not imposed a blockade and suppressed Christianity?

 From around 1620, the Tokugawa shogunate expelled all Westerners and priests in Japan, tortured Christians to abandon their faith or execute them, and banned all trade with Europe except for their Dutch superior in Dejima, Nagasaki.  For the bakufu who had already established a unified regime, the Christian doctrine of denying the feudal hierarchy they were trying to establish was probably reflected in anarchic ideology similar to communist ideology seen in the Cold War capitalist camp.   In the Warring States period, when the war was divided into numerous regions, South Korean merchants and missionaries who delivered European weapons and cultural assets developed to take the lead in the war were grateful, but for those who established a unified government, Western ideas, religions, and cultural assets were impure. However, some Japanese historians feel sorry that Japan lost the opportunity to embrace European science and technology and ideas that were blooming for a long time by locking themselves up. What do you think of the feudal private agricultural and industrial system, and the new civil society, if you continue to allow Christian missionary work, the shogunate will be shaken and Japan will become a cultural colony?