Why do I have fly over the runway first before landing?

Can a Plane Land IFR at a non-towered airport, when there are VFR planes in the pattern ?

Practice ILS or Rnav approaches are OK under VFR, if everyone (including a Tower) now what you are doing, but to fly straight in to a runway, VFR with other VFR planes in a non-towered pattern, borders on “loose your license” stupidity.