You're speaking like this precludes anybody who has ever posted something "cringe" from running, but there's a world of difference between someone who, 15 years ago, posted something embarrassing that they have had time and distance from, and this kid who is still a teenager who appears to have posted "Hitler "may have not intended death" during the Holocaust, and that "lots of Jews died" not because Hitler "hated them specifically" but because there were so many of them."

He was removed by his own party, immediately, which also tells me that it's likely that these were both fairly recent posts, and that they were creditably attributed to this candidate.

Sorry but a recent history of Holocaust denial, even if it's just an edgelord kid being an edgelord kid, is absolutely a valid reason for the party to revoke his candidacy. It doesn't preclude him from running, he just does not have the party endorsement or resources of the CPBC.