Torah is literally instruction on what to do in the world. It is a profound argument on what is more important – learning l’shma or l’maan laasot, nothing personal here.
For example, Avoda Zara 17b: Rav Huna says: Anyone who occupies himself with Torah study alone is considered like one who does not have a God. The alternative offered there is tzedokah. Obviously, one needs to have funds to do tzedokah, whether inherited or earned.
Again, I am not making a silly argument one v. another in modern practical world. I am saying that those who insist on “only learning” (or “only working”) have to prove their case and not pretend that other opinions are outrageous. These opinions are all over Gemora and later. You can justify deviations, but do not make deviations normal, and normal devious.