Should it be easier to remove a US President from office?
Unlike in Parliamentary systems where often all that is needed to remove a government is a simple majority, removing a US President can only be done when the President is found guilty by the Senate of a crime for which the House of Representatives passed an Impeachment.
Only two US Presidents have ever been impeached, Andrew Johnson in 1868 and Bill Clinton 1998. Neither were convicted by the Senate and hence neither were removed from office.