New Quiz show: Which country can have the biggest clusterf***?

The two contestants are Britain and the USA. Brexit vrs the wall. The task is to have a really ugly, messy and bonkers constitutional crisis based on an absurd idea which costs loads of money and benefits nobody. The crisis must be caused by fears of immigration and post-imperial nostalgia. The task must include no plan, or (at least as a bare minimum requirement) no workable plan. It must cause anger, polarisation and bad faith arguments. It must create a bind for which there is no obvious or easy way out.

Who will win?

😜🤦