I don't know if this is more obvious to you than you let on but in case it's not, your software at first glance seems potentially harmful to children and is very clearly biased towards a conservative viewpoint.
It shouldn't be a suprise to end up with the user base you did when you are intentionally (or possibly unintentionally) biasing your filter the way you do.
With all due respect, the filter list reads like a list of things a drunk uncle would complain about at the family BBQ. I mean really chatGPT girlfriends???
To give some constructive criticism, I think you need to take a step back and decide if you are building a politically motivated tool or not. I want to be clear that what you have here is not representative of the moral status quo in the United States. It can be easily to think it is depending on the circles you frequent but it's statistically just not.
Consulting with someone to help eliminate politically bias in the filtering could go a long way to improve your potential customer base. Most parents I know would take one look at this and run.
In a very general sense I think your site feels too technical. Are people who can't control their children's computer usage really reading patch notes and switching website themes from a drop down?
Sorry if this sounds harsh. I originally intended to just write about the last point but after looking more into the site it became clear that there are bigger problems here.
Edit: As has been pointed out it's not so much about what you included as it is what you left out. You could potentially eliminate the bias just by balancing this list considerably. At what point do you just make an allow-list though lol?