Feels like the right direction, pull all European money from the US, hope that financial and economical consequences convince US citizens to deal with their president as he deserves. It will decrease profits short term but certainly will have less negative impact than letting that guy in power.
Talk about a pipe dream. This is a far less significant penalty than what has been applied to Russia and absolutely nothing has happened to Putin.
Europe could apply all the same sanctions to the US that it has applied to Russia and Trump would still serve out his full term.