Are you a rabbi of a shul?
Seems that you’re having an issue being a rabbi you can’t tell them what you’re saying here? Are you scared they will fire you or not listen to what you’re saying? Even if these two points are true and it’s very sad if it is. Why would you be scared at your Purim party if you don’t have these fish and meat boards. You’re just having what you can afford and want at your party and if someone asks you where is the boards then they have an issue and you should just shut them down and they shouldn’t be allowed to join your parties. Who asks a rabbi what they have at their party obviously you can’t afford it you don’t have it and if you can then maybe you don’t want it. It seems the whole community you’re a rabbi for is not letting you say what should be fixed and you’re even scared for your coming Purim party! Good luck!