Essentially yes. There isn’t a happy solution where FOSS gets the best images and remains competitive. The amount of data needed is outside what can be donated. Any open source work will be so low in quality as to be unusable.
It also won’t be up to them. The platforms where the images are posted will be selling and brokering. No individual is getting a call unless they are a household name.
None of the artists are getting paid either way so yeah, I’m thinking of society in general first.