I don't think everyone here pushing the GoFundMe wall is necessarily a shill. I suspect some are legitimate, if impatient patriots. Maybe some who already donated and may be suffering buyers remorse when other anons shit on the idea.
For the shill, it fits perfectly in their divisive narrative. "Hurr Durr, Drumpf said he would make Mexico pay for it, and instead he tricked you losers into doing it for him."