Summary
A Canadian parliamentary petition to revoke Elon Musk’s citizenship has gathered over 150,000 signatures.
Launched by author Qualia Reed and sponsored by MP Charlie Angus, the petition accuses Musk of undermining Canada’s sovereignty due to his ties to Trump, who has repeatedly suggested annexing Canada.
Musk is a Canadian citizen through his mother. The petition will be presented to the House of Commons, which resumes on March 24.
The only example I know of where an online petition has had any effect is this: https://en.wikipedia.org/wiki/Alan_Turing#Government_apology_and_pardon
Offline petitions may sometimes have more effect because the barrier to entry is higher there.