It won't be a name change that'll make support more attractive
The fact is most of playerbase like to deal damage nonetheless. MMO is the reference here. How long can you wait in a queue as DPS for instance dungeons? But, let's talk about LoL. Why isn't support attractive here specifically ?
• Lack of Gold (XP issues has been solved-ish)
• Can't be played outside of Botlane without getting bring back bot (ex: Lulu / Janna) or can't be played at all outside of support (Meanwhile Mage going bot being oppressive and... nvm not the topic)
• Is less flashy / Feels less impactful (usually)
• Feels like playing an Active Bot (ie. Getting as much Active items as possible e=and use them at the right time - Yeah I'm looking at ya
)
• People can feel like they're relying on her ADC since even if Support gives the engage/protection, they're hoping for their Marksman to do the job. And sometimes it might make some people cringe.