That would depend on which quota systems you were asking about (you have not made this clear in your question), I do not oppose quota systems in general but made do so in specific cases.
In the US - they will tell you that there is no 'quota' system.
reconcile the quota system to the first law of the labour force in nigeria
The Emergency Quota Act.
partial quota reservation system
I think it is Quota Management System! ( biology)
Immigration in the U.S.
Quota System
A quota system is used to set limits on the quantity of goods or services that can be produced, imported, or sold within a specific timeframe. To utilize a quota system, you first determine the desired limits based on market needs or regulatory requirements. Then, you monitor production or sales closely to ensure compliance with these limits, adjusting operations as necessary to meet the quota. This system can help manage resources effectively and stabilize market prices.
gaven
Around 1998
The enactment of a quota system
The quota system set a limit on how many immigrants from each country could enter the U.S. every year. The main goal of the quota system was to limit immigration.