If you trust your boyfriend then I don't think you should make it an issue but it's hard to give advice without knowing both of you. Here's my take on this: I understand why you wouldn't like having a stripper at the party, especially since the host seems to be the party animal type. However, if you trust your boyfriend and if you think that he can handle seeing a stripper without going a little nuts then I think that you shouldn't make a big deal about it.
Personally, if my girlfriend would forbid me from going to a strip club or doing anything else for that matter, I would have to seriously consider whether I want to continue seeing her. But that's partly because I don't want to be controlled. I've known guys who would not step foot inside a strip club because their girlfriends told them they don't want them going to these places. If your boyfriend is willing to not do something because you're not comfortable with it then you can probably get away with taking a hard stance on this issue.
I think it comes down to trust and respect and it goes both ways. There needs to be some compromise and this is easier said than done because some people may have boundaries that they expect their partner not to cross, such as my example of not putting up with my girlfriend forbidding me to go to a strip club. I just think that if I were to allow her to dictate where I can and can't go then if I stay with her, I'd be controlled my entire life. I don't want that. However, I don't want to control her either so I won't question where she wants to go. The way I look at it, if she's going to cheat on me then she's not worth it and I also don't want to spend my time racking my brain wondering what she's doing and being jealous. That's not for me.
If it really bothers you then have a long talk to him about it, if you haven't done so already. Maybe instead of forbidding him to go to such parties, you can talk to him about exactly what bothers you about it. Maybe he can keep more distance from his strippers... I don't know. I don't know him but not everyone will accept an ultimatum so if it boils down to him really wanting to go to this party then I think you should accept it.