They do that and Parliment will have to turn over ALL of the lands the royal family owns. Turn over all of the money they make and loose that source of income.
This means handing over $88 billion worth of land, property and valuables to the royals.
Gee I wonder how many of the higher up Democrats and Republicans are going to be subpoenaed over this mess? Because it could be a chance to drain the swamp as it were.