Young Adults Identifying as LGBTQ Has Dropped 21% Since 2023 (Emily Brown, 3/05/26, Relevant)
Looking at BRFSS responses from 2014 through 2025, Twenge found that among adults ages 18 to 24, identifying as lesbian, gay or bisexual peaked in 2022 at 20% before dropping to just over 15% by 2025 — a 21% decline in just three years.
The changes show up first, and most clearly, among the youngest adults.