I don't think it's possible to reclaim LinkedIn. It's not exactly a democratic platform and I doubt user outrage will change anything unless their user attrition rate goes through the roof. They can just tweak their algorithms, mute or limit the reach of users to hide discontent from others too. Better to just leave and try to get #fedihired instead.
They did the same shit to me. I refused and pestered them with numerous e-mails demanding them to just delete my account instead of reopening it. Finding a link to their contact form was a nightmare (it's hidden all the way at the bottom of their privacy policy). I also emailed legal@linkedin.com, dpo@linkedin.com, helpdesk@linkedin.com, support@linkedin.com and a number of other generic addresses just to be sure they would receive something.
I got three LLM sounding replies where they asked me to follow a link to verify my identity with a government issued identity document, but after a couple more e-mails where I wrote that providing Persona or LinkedIn with my identity documents is against my personal security policy, they just caved and reopened my account calling it a "temporary measure to protect my account". Set a new password, logged in and deleted my account immediately. Good riddance.
And large language models
Fuck how I detest these times we’re living in
Don’t use it
All things that go up must come down. Icarus’ wings will melt from the sun’s heat. The web will crumble under the weight of llm bots. Markets will crash due to llm’s not living up to their hype. Big tech will be broken up. Billionaires and the trillionaire will be taxed to death. Regulators will lose interest. Let’s have hope.