i understand that sentiment and i think it's rational, but pornography where there is an exchange of money accounts for, what, 99.9% of today's pornography? from the original producers (whether they be artists, actors, directors, editors, etc) to distributors (ranging from small websites that also produce to huge platforms like onlyfans), to the whole host of third party content resharers that make the majority of their revenue from ads, the vast, vast majority of pornography production involves an exchange of money. i think as marxists we have to take the labor theory of value pretty seriously here: the liberals are in a way correct when they exclaim that "sex work is work," in the sense that (in a world where your needs are not guaranteed) anyone participating in the act of pornography creation/distribution has a material interest in seeking compensation for their labor, and it is that interest that would be squashed with a full ban on pornography production and distribution.
because, not to be pedantic, what about nonfinancial compensation for pornography production, or sex work in general? i imagine we would all agree that, for example, an exchange of goods/services (i.e. crystallized labor power) in return for sex is just as bad as prostitution where money (i.e. a more liquid and exchangeable crystallized labor power) exchanges hands. in fact it's potentially even worse, because it's harder to write laws against and harder to enforce those laws. a full ban on pornography production/distribution avoids these potential loopholes to ensure no one (or, the least number of people possible, accepting the near certainty of a black market) have a material interest in pornography.
furthermore, pornography is obviously problematic because of its deep ties to and representation of patriarchy. it affects how people view and consequently engage in sex, and in what erotic art people might make as well. i think it's perfectly fine to ban all erotic art until the commodity form is abolished. i don't believe that free expression is more important than the minds and lives of all those who are touched and affected by pornography.
just to clarify, no, this does not apply to nudes sent between consenting adults in the same way that a ban on prostitution is not a ban on sex. and no, i don't necessarily think a full ban is something that should be implemented immediately but something that should be worked towards in stages.