first of all, every descendant of Adam is born "spiritually blind" so your "elect" are included in the whole of the pool of humanity before birth and at birth.
secondly, the only thing that will open "spiritually blind eyes" is for descendants of Adam to believe in God's provision for sin ... the Lord Jesus Christ:
Romans 10:
9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.
13 For whosoever shall call upon the name of the Lord shall be saved.
... many saw Him and did not believe so your claim here is false.
only those who believe in the Lord Jesus Christ are saved ... as it is written, the just shall live by faith
Romans 1:
16 For I am not ashamed of the gospel of Christ: for it [the gospel of Christ] is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
17 For therein [the gospel of Christ] is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
.
secondly, the only thing that will open "spiritually blind eyes" is for descendants of Adam to believe in God's provision for sin ... the Lord Jesus Christ:
Romans 10:
9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
11 For the scripture saith, Whosoever believeth on him shall not be ashamed.
12 For there is no difference between the Jew and the Greek: for the same Lord over all is rich unto all that call upon him.
13 For whosoever shall call upon the name of the Lord shall be saved.
... many saw Him and did not believe so your claim here is false.
only those who believe in the Lord Jesus Christ are saved ... as it is written, the just shall live by faith
Romans 1:
16 For I am not ashamed of the gospel of Christ: for it [the gospel of Christ] is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
17 For therein [the gospel of Christ] is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
.