What I and most of the "deniers" questioned falls into 2 categories.
Actually, no. You're falling for the false-consensus effect. There are a whole lot of different "denier" opinions, but yours is not one of them. You are making false cause with people who actually think that you're a deluded global warming apologist. The people who are correctly labelled as deniers are those who actually deny that global warming is happening. Generally, they deny that the greenhouse effect exists, that CO2 is a greenhouse gas, or they deny that man is producing significant amounts of CO2.
The people, like you, who claim that the models are overstating future warming and that unchecked global warming won't dangerous are luke-warmers, not deniers.
Most of the models Ive read about show that human activity is only a tiny sliver compared to other factors, especially water vapor from evaporation.
Let me explain a bit here. Water vapor is effectively constantly at saturation in the atmosphere, evaporation and precipitation keep it relatively well balanced. The major factor that determines how much water vapor is in the atmosphere is temperature. So, it's a feedback effect, water vapor amplifies the warming caused by other factors such as CO2 and Milankovitch cycles. Additionally, CO2 gets the lion's share of attention because it's a long lasting gas and we produce a lot of it. It will likely take centuries for CO2 levels to fall back to pre-industrial levels even if we cut emissions to zero right now. Other, more potent gases, tend to have half-lifes that are measured in years instead of decades or centuries and we produce orders of magnitude smallers amounts of them. So while CO2 is a relatively weak greenhouse gas, we produce a lot of it and some of the other gases, like water vapor, amplify it's effect.