I don't think folks on our side are used to being activists. This has historically been the purview of liberals. Many probably don't think it'll do any good or just don't want to get involved. Others just seem to enjoy telling others how dumb they are and inflecting their smugness where ever they can.
It's a change in mindset on my part too. But I plan on being "pen-pals" with Todd Young, Coats, and Donnelly this next year