Excellent dollar amount, not participation.
Schumer claimed on the Senate floor that POTUSs base was less than 25% of the USA! He probably estimated that figure from donors on #GoFundTheWall page.
The figure that is important is the number participating in the fundraiser NOT the dollar amount.
I think that next month there will be a huge surge in the GoFundMe wall account. As a retired person living on a fixed income, and the fact that it is Christmas, I am not able to donate until next month. I suspect there are a lot of retired people who plan on donating in January.