When I was young Columbus was lionized in schools. Now young people I talk to demonize him more and more. He wasn't even first (Viking explorers beat him there by a lot), he was just first to brutally exploit. I'm sure the things that are named after him will be renamed eventually to honor more deserving figures.
That is a very US-ian perspective. AFAIK he is still lionized in Latin America, and likely will continue to be, as he is a sorta-kinda the ur-founder of all those nations.