I don't see the issue in acknowledging the existence of deists.
They may exist, and self-described deists do exist, but trying to link their beliefs to those of Deists in the past, to give Deists intellectual credence, is tenuous because Deists believed so many different things.
If one looks at the reality of the world we live in, the deist God has a higher degree of probability than the Christian God, IMO.
The reality of the world we live in? What does that mean? I'll tell you what, there's suffering in the world but also happiness. And sometimes strangely enough, the suffering in the world is transformed into happiness, particularly if we live in ways that are transformational and mindful. So it's hard to say the world is so bad that a benevolent deity could not exist, unless you simply dismiss the potential inherent in our existence as rational creatures with the freedom to choose our values.
If God is benevolent, why would he not be involved in the world in some way? No, I simply don't see Deism as plausible. Even existing as a moral influence, is involvement in this world. Existing as a judge of the afterlife, is involvement in this world. If God exists, he has to be relevant in a personal way to everything he creates. He has to be available. And this is possible for him to do, because he is God.
There are religions, BTW, that do not believe in a Creator in the classical Christian sense, but they do believe in a supreme being involved in the world. Certain forms of process theism (Unitarian and Christian), or certain Buddhist traditions (Jodo Shinshu), for instance. I find this much more plausible than suggesting that a benevolent supreme being created the universe, then abandoned it. Indeed, if this being is supposed to be reasonable, I just don't see why this is reasonable.