Social dark matter suggests that we will tend to observe proportionally less of any position that is socially costly. Social tax on a claim increases with distance from Overton window. Assuming the trend you present is representative of one in the general population there could be a stated preference cascade point if x risk concerns were to reach sufficient social palatability.
At least across my circles and semi-random members of the public, which suggests in general.
My Twitter:
Here on Substack:
Americans I polled via Positly: