ethical ads are virtually non-existent. when limiting ads to ethical ads it's unlikely you're getting even remotely close to bringing in the necessary funds.
people promoting ads are typically those who expect others to suffer while they themselves are using ad blockers. there are some people who honestly turn off ad blockers, but i wouldn't recommend anyone to do that for any site, as i don't consider the majority of ads ethical and it's also often used as a malware/phishing/scam distribution mechanism.
this is also a vicious cycle of more people blocking ads -> ads getting worse to offset the lost ad revenue -> more people blocking ads. this is what lead to the internet today, where the majority of the internet is basically unusable if you don't use ublock origin or a comparable solution.
tbh it's probably not going to be too complicated to switch to 1.0. the current api is generated from lemmy-js-client, but 1.0 api has an official openapi file. if there is a decently usable openapi generator for go that would probably not be too complicated to swap in instead and adjust the api calls in mlmym code.