What was not a major cause reason for the decline of feudalism

The decline of feudalism occurred due to a number of events which occurred during the Medieval era of the Middle Ages. The Crusades and travel during the Middle Ages opened new trade options to England. England started to move from land based economy to a money based economy.The Black Death - this reduced the population of England making labor valuable.  The Feudal Levy was unpopular and as time went by Nobles preferred to pay the King rather than to fight and raise troops

this headline suggests that midterm congressional   elections are at the corner and trump administration wants to activate his base by vowing to clamp down on immigrants and immigration as trump had said during his election campaign around two years ago. when a baby is born in usa, the baby becomes citizen of usa for 85 years and trump wants to end this rule of birthright citizenship to control illegal immigration and this what he said in an interview""we’re the only country in the world where a person comes in and has a baby, and the baby is essentially a citizen of the united states for 85 years, with all of those benefits,” "