Yes, I am aware of the conversions, but they need to have a strong Christian community to join. If the Christians all get martyred or driven out, they can then read about us in picture books. But they could read those books, without traveling. We could send them an e-book. This is the same integration question that the Germans thought they'd solve by simply flooding the country with foreigners. The new arrivals would all see how wonderful Germans are and want to be like them. But the new arrivals didn't see Germans. They saw other new arrivals. The Germans had been washed away. The Middle East didn't become more Christian, by Muslims overrunning the place. It became more Muslim. The Christians are almost all gone. Only the new converts and a few holdouts in Lebanon, or whatever. And they are often converting because of the Internet, rather than because of something where they are. The Bible is very convincing, if you just read it. And it's online, now.

Yes, you have to have a strong Catholic community to join. Germany isn't that, it is rather the source of a large portion of the heresy and bad ideas of the last 1000 years. The reformation, Marxism, the Synodal way. It was never going to win anyone over. But there are good roots in pockets and those will draw converts. It may take centuries but it will happen.