Aaq, you’re not reading the words. He says the yesh omrim, then he says that that’s the halacha. Then he says lefikach – therefore, since the halacha is that way(which includes anyone), the rav of the city etc…
Rav moshe writes that someone who wants to follow the shitah of not being supported in our time is a baal gaavah. Clear in igros moshe; I’ll get it when i have s chance.
On the rambam itself, the radvaz writes that if we folllwed this shitah, “kvar nishtakach torah myisroel,,” torah would have already been forgotten from yisroel.
It’s not about idealism, it’s about protecting the Torah. And those like you who say to stop supporting Torah are attempting to minimize kovod shomayim, minimize Torah and the development of its chachamim. Why? Gadol hasinah shel amei haaretz…