There used to be an all-Flash site called “poisson rouge” when my kid was a toddler, and it was absolutely awesome. Hundreds of educational games, bright, fun, animated…
Edit: was nostalgic, looked it up - seems they relaunched at some point! https://www.poissonrouge.com/play/
Frankly this might boil down to what you’re willing to jeopardize. This might be a case of ultimatum with your husband, i.e. i won’t be with someone willing to pay for our daughter to put out misinformation, harm and pain into the world. If you divorce him and take half the assets, it might make it harder to pay for that quackery.
If you’re not willing to put your foot down to the extent, you might need to make peace with it…