I understand your point but don’t agree that your post is entirely true with regard to missions as a whole. It is true that much focus has been placed upon the Latin American countries, but now a lot emphasis has shifted to the 1040 window, where over 4 billion people and 97% of all unreached people groups live.
Some countries are locked down tight - it‘s estimated that some 60 countries are closed to missions, and plenty more make it very difficult. There are the obvious - North Korea, Iran, Saudi Arabia etc. India, which of course allows all sorts of international workers, was officially closed to overt missions work in the early nineties, I believe. But even so, there are plenty of missionaries in a number of closed countries, but they don’t go in as missionaries, and they work very discreetly upon fear of imprisonment, expulsion or death. I belong to a strong missions-based denomination (C&MA) that has dozens of missionaries in “creative access” countries in Asia and the Middle East, missionaries we hardly hear about, can’t talk openly about or publish info on.
In addition, we have scores of missionaries in predominantly Muslim West Africa, volatile areas where political winds shift constantly and clashes are often a concern (Cote D’Ivoire and Guinea, for example). And headway is hard among those native Muslim people groups, but they are there. They’re in ex-soviet states of Central Asia, where churches are not allowed and proselytizing gets you jailed or thrown out. These days some of those states have a deadly idealogical mix of holdover soviet Marxism and Islamism. And we have missionaries overtly working in Indonesia, the most populous Muslim country in the world.
There’s even been a return to European countries like France and Germany, because their religious demographics have shifted so much that they are unrecognizable.
And who knows how many there are from other nations. For example, there is a group of Chinese evangelicals called Back to Jerusalem which for the past several decades has made it their mission to reach all the people groups between China and Israel, mostly Muslims, because, as they put it, they are used to persecution from Communist China, and therefore already trained to withstand it.
And about those Philippines - despite the demographic you cited, it's not exactly a safe place, considering the spread of radical Islam out from southeast Asia - Al Qaeda offshoots are active, and Muslim rebel groups in the south have been fighting the Philippine govt for autonomy for years, leaving thousands dead and hundreds of thousands displaced.
But many of these "closed" countries send their best and brightest young people to American universities. Show an interest in their language, and you have a superhighway into their hearts. Welcome them into your home, let them see and feel the warmth of Christian family life, and their perceptions of Christianity will be permanently changed.
This is a perfect home school project, BTW. You can challenge your bouncy offspring to wrap their brains around a very different kind of language. They participate in evangelism by praying for known and named Muslim friends over the dinner table, and by helping with the hospitality.