Thanks for the replies everyone. I’ve decided to not let my concerns overcome the most important thing of releasing the project as fully open source.
Just going to go with GPLv3 and not worry about the clones that will happen regardless of the license type, if the program becomes popular.
Thank you all for your insight and for helping me come to what I believe to be the best decision.
Exactly, it’s ludicrous and always was. Especially in this day and age.
Later that day:
As a parent myself, I understand not wanting to expose your kid to sexual content depending on their age, but in the context of sexual intercourse etc, not just a naked body.