That's a misleading use of data.
Yes UK net migration dropped sharply from a record 944,000 in the year ending March 2023 to an estimated 204,000 in the year ending June 2025, but largely due to policies introduced by the previous Conservative Government.
This 69%–78% decline was largely driven by reduced immigration (specifically work/study visas) and higher emigration.
Peak (2023): Net migration reached a record high of 944,000 in the 12 months to March 2023
Mid-2024: Net migration was estimated at 649,000.
June 2025: Net migration fell to 204,000, representing a 69% year-on-year decrease from 2024.
The main reasons for this decrease was :
A sharp decline in visa applications—specifically, health and care visas fell by 89% from their 2023 peak, and student dependant visas fell by 57% following restrictions brought in by the Conservatives in 2024.
Increased emigration of international students and others who arrived during the 2021-23 peak, after restrictions brought in by the Conservatives.
Since 2022, EU net migration has been negative, with 70,000 more EU citizens leaving than arriving in the year ending June 2025, due to Brexit.
There is a net emigration of British citizens, with an estimated 109,000 more leaving than returning in the year ending June 2025.
The decline is expected to continue due to policy changes introduced in 2024 by the Conservative government and continued by the Labour government.