Introductory it as Object
The 'make' group
Verbs with this pattern are concerned with causing a particular situation.
The reflection of the sun on the surface of the water made it impossible to see the bottom.
He argues that federal subsidies have rendered it hard to differentiate between good farmers and bad.
The passive pattern is it be V-ed adj to-inf, where it is the Subject of the clause.
It should be made impossible to overrule a minority with anything less than 75% of the votes in the Council of Ministers.