Red Card (apparently) stops user from switching out.
According to bulbapedia (NOT self tested), red card prevents user from switching via Volt Switch, U-Turn/ Flip Turn.
Link https://bulbapedia.bulbagarden.net/wiki/Red_Card
On Showdown, however all the moves switch the user out anyway.
https://replay.pokemonshowdown.com/gen8ubers-1799017158
Slower Magearna shouldn't have switched out as it held a Red Card
Same Bug in Gen 9.
https://replay.pokemonshowdown.com/gen9ou-1799021548
Might require in game testing; I don't have the games.
According to bulbapedia (NOT self tested), red card prevents user from switching via Volt Switch, U-Turn/ Flip Turn.
Link https://bulbapedia.bulbagarden.net/wiki/Red_Card
On Showdown, however all the moves switch the user out anyway.
https://replay.pokemonshowdown.com/gen8ubers-1799017158
Slower Magearna shouldn't have switched out as it held a Red Card
Same Bug in Gen 9.
https://replay.pokemonshowdown.com/gen9ou-1799021548
Might require in game testing; I don't have the games.