It often works better to get closer to the organization in terms of bridge-building, and then rephrase your thinking as a problem, not as a solution; also as a question, not as a complaint.
One example (of many potential ways to do this):
"Hi, I was happy to find that you are creating video resources for families. Our family has chosen to avoid the ad-driven sites like Youtube, however. Is there another way to enjoy the same videos on another website or media service?"
This is assuming you are not making a more general complaint as something like a citizen-spectator, which is typically much easier for an organization to outright ignore or push back on (and along these lines I would avoid sending _anybody_ examples of hurtful or disturbing content you think kids may stumble across). Specifics and an amenable approach to specific workarounds are your friend.
If your complaint does have to retain a sort of general "waves hand at straw-children" affect/weakness for any reason, you should find other people who are not OK with this and join up with them, start a petition, or take other productive measures that help groups make progress in such cases.