I think you'd have to shift the age groups up significantly to say anything useful about conservative leaning people, maybe do mid 40's and 60's or something like that.
I think we'd all be surprised at how many people actually lean conservative in the 20-40 age group. My hunch is that 9/10 people who lean that way stay silent for fear of professional/personal repercussions. Voicing conservative view points in the monolithic tech industry will get you fired and excommunicated