So, what is relevant? Relevant is relative.
Religion is dangerous because it's exploited. Corporations are exploited, governments are exploited, society is exploited, the poor are exploited, etc. Where do you draw the line between what is relevant and what isn't? We choose to believe/trust in other concepts with less than perfect implementation (government, etc.), so why is religion any different?
Get a grip on reality? Reality as you define it? For some people, religion is a reality. If it gives them hope and a standard by which to live, why are they "unhealthy?" Until someone can conclusively prove the existence or lack of existence of God, there will be a debate.
Also, when you compare Santa Clause to God and instantly call religion (I assume you mean any religion) a "bunch of lies," you come off as angry and arrogant and your argument is already taken less seriously.