a rethink
I get that border control is important but a huge re evaluation of what is needed and how to do it with hopefully a regular re appraisal of processes.
as a for example on an International flight with luggage,
I buy a plane ticket
I tell the airline to link my passport with the ticket
I go to the airport,
they check I fulfil the cv deptaure requirements (don't get me started on verify piece of junk),
match my passport pic,
they take my baggage
issue a boarding pass
I go to security & they want to see my boarding pass then check me and my carry on has no banned stuff.
I go to the gate & they may check I match my passport pic & I have a boarding pass
I board the plane and they check my boarding pass likely so they can direct me to my seat.
I get to the destination after being in a tin can for a period of time and they then want to check my passport and any declarations
where ever the destination is, I've typically booked the ticket more than a few hors before departure & I've been in a sealed tin can for many hours and no one gets off till I reach the destination. if there is an issue they already know the passports and have the pre departure security footage so why don't they escort the people off the flight or wait till they are walking along the corridor before picking asking them to accompany them to answer some questions? why do we need to queue for ages to go through a gate when they already know who we are & if we should be there or not?
once through passport control we are still not out as we have to go through customs!!!
I don't think anyone stamps passports anymore, its all electronically logged so why go through the theatre when it could be done electronically or during flight etc.
The intelligence & info doesn't change.