Hello,
That is one of the problems when speaking with or about Protestants. Each denomination believes different (sometimes radically) things than every other denomination.
Usually the denial is not explicit, as in a statement - We don’t believe in the humanity of Jesus - or - We don’t believe in the divinity of Jesus. Although this is the case with a couple of groups, the majority of those who deny do it much more subtly, and may not even realise that they are doing so. They will tend to focus so much on one aspect the the other gets dissolved.
For instance, a group could focus on Jesus’ humanity. He becomes the historical Jesus. They think of Him in almost purely human terms and suddenly He doesn’t seem be divine anymore - He’s one of us, and one of us sinners can’t do anything without God, therefore Jesus didn’t perform those miracles, it was His Father Who sent Him.
Or, a group could focus on Jesus’ divinity. They think of Him in almost purely divine terms and suddenly the thought of Him condescending to take on a true human form is repulsive. At best, He took over some Jewish boys body and possessed him like a demon does.
The correct understanding is that Jesus is fully God, equal to the Father in all things. He is also fully man, like us in everything except sin. This means as man, He got sick, had to eat, got dirty and smelly, had emotions and feelings, could die, etc. It also means that as God, He is omnipotent, omniscent, omnipresent, etc.
If none of this applies to your particular denomination, I can’t (nor can anyone) speak for all the denominations. And even within denominations, every member has different beliefs. This is the tragic effect of sola scriptura and private interpretation.