Tesla stock has plunged as much as 53% since December, prompting some retail investors to exit early.Exuberance post-Trump's election led to a surge in Tesla stock, followed by a notable decline.Three former Tesla shareholders shared reasons for selling before the stock dropped further.Musk's controversial personality was a key factor influencing the investors' decisions.Mikhaela Delahunty considered the impact of Musk's alliance with Trump on Tesla's branding.Dan Chan sold his shares due to concerns about Musk's leadership style and political involvement.Jonathan Goodman backed out of his investment due to Musk's continued affiliation with the president.Goodman believes in Tesla's business model but was deterred by Musk's actions.Delahunty and Chan cited issues with Tesla's products and recalls as reasons for selling.Chan was bearish on Tesla stock due to concerns about self-driving car features and safety mechanisms.