Policy opinion: am i going to suppress the freedom of speech if i ban religion topics and porn on my instance?

At least for me its very difficult to make the line between preventing hate speech and allowing the freedom. I'm thinking to launch a lemmy instance, but the targeted audience is very sensitive to religion topics, and i'm sure if i allow it, this could lead to hate speech at some point and may fuel violence. Also, from my prospective, i just want my audience find new good things far from porn, porn sites are a lot, and i don`t want to mix it with other topics that can very constructive.

So please tell me your opinion, if banning these 2 topics can effect the freedom of speech.