"Jesus adherence" is fairly problematic itself, never mind the "Christianity" bit. I have never been convinced that Jesus is or was a deity, though I do group him with other deities for the simple fact that he is essentially treated as one in the society in which I live. I am agnostic and a Heathen (Norse Pagan type), and I tend to give all deities equal weight. I clearly have my favorites, and he's one of them whether he is a deity or not. As for adherence to his message - oh, dear. That is a sticky one.
I do have a special fondness for Jesus simply because of the way *I* perceive him. Being from a large family with a high degree of religious diversity, I was exposed to many different concepts of Christ from an early age. Like I'm sure many children do, I quite liked who I'll call "hippie Jesus" because he was presented to me as a fair and gentle man by some of my Christian relatives. Then another Christian relative would grab me up and take me to their fire and brimstone church and scare me away from who I'll call "jerky Jesus", who was presented to me as someone who would happily do you harm for the crime of being human and having human thoughts - unless you put the quarter mom gave you earlier in the plate and apologized for being a person in the *exact* right way, every Wednesday, Friday and twice on Sunday. As an adult my views of him are far more complex, but I've not found good evidence that jerky jesus deserves my time or consideration, let alone a capital "J" in his name, though he certainly has gained a lot of followers in the intervening years.The two radically different concepts of Jesus are alive and well in my family and always have been, so while I know there is one Jesus, there are in some ways just as many Jesuses as there are people who say the name. I choose to focus on the positive wherever it can be found, so when I reference "Jesus", I always mean "hippie Jesus", because that's how I perceive him.
The message I received about loving your neighbor and having hope in the face of adversity and being just an all-around OK kinda person was so firmly attached to the concept of Jesus that I hold it to a certain extent to this very day. I have a very strong concept of Jesus as a good guy if nothing else. I do not worship him, I do not go to church and take communion, I have never been baptized. I do not light candles for him, pray to him or talk to him. What I *will* do is defend his name from baseless attacks based not on his own behavior, but on the behavior of those who claim to be acting on his behalf - every. single. time. I will defend his name from attacks by those who claim to be acting in a way he would approve of or a way that he demands but that are actually being more like jerky jesus - every. single. time.
That does not make a me a Christian. It does not make me an adherent. This isn't me trying to follow an example he set or anything of the sort. That makes me a Heathen whose own perception of Jesus along with the concept that the 'word fame' (reputation) never dies makes me become deeply offended by those who would try to slander that name. He does not deserve other people's BS, in other words, so don't they DARE. What others choose to make of that is entirely up to them, but whatever they choose to think about it, it is extremely unlikely to change my concept of Jesus or even my sometimes aggressive defense of his reputation. It is also highly unlikely to make me mistake myself for a Christian, though others sometimes do.
You know, I did have someone try and 'call me out' on that sort of thing once. A neighbor told me I 'couldn't like Jesus' if I wasn't a Christian. REALLY? I told him something like "OK, then make me stop." He seemed a bit uncomfortable with that suggestion.