For those who don't believe in him: fine. I wont sit here and say your wrong. It's your opinion. Fine.
But know this--
Even if he wasn't what he said he was; what WE believe he was, and is: didn't he try to live life by the best possible rule? Love your neighbor like you love yourself, don't lie, don't wish you had someone or something that someone else has, don't kill each other, etc
Any time anyone lives that way, even non-believers, you honor Christ and have lived like him.
You don't have to believe or be indoctrinated into anything:
Just do what's right.