He genuinelly is not a good person. He's a glorified US fanboy anti lgbtq+ "anarcho capitalist." He also is against abortion. Where is this hopeful wiggleroom you have?
Idgf he's a good person or not, he's supposed to rule a country and stabilize the economy for the argentinian people. Since he's not aligned with the popular party of the Internet he's getting so much hate and from people that haven't even been to south America.
I don't think people on Lemmy like Peronistas very much, but the vast majority of things Milei stands for and has proposed are very sus at the very best.
He isn't going to fail because of Internet criticism. If he fails, it will be because of policies of his own making. It's up to him to prove himself. If he can't, the criticism will continue.