As frustrating as the US visa system is, large numbers of people are still applying for visas which is funding USCIS. Until either the numbers drop, or congress changes how USCIS is funded, I unfortunately think this is not going to change.
I don't think this is quite what's happening here. Overall USCIS is funded by fees, but operates a system in which some kinds of applicants subsidize other kinds of applicants. So, applications for asylum are free to make even though they cost USCIS a lot to adjudicate. To make up for this, USCIS charges extra for applications in other categories, like employment-based visas.
I'm not sure what exactly is happening in this case, but by saying "Because the US can’t seem to get a handle on its borders" the article author seems to be claiming that artist visa fees are subsidizing asylum claim applications.
