I’m not sure why the number of them that I personally know is relevant. When I volunteered in the US I spent some time working with the local Native community, so I learned some things then. Obviously it’s not always specific to Columbus, but they have their feelings about him.
These days, sensitive people seem to have a beef with a whole lot of dead folk, especially white men in former positions of power. Woodrow Wilson for racism, Andrew Jackson for the Trail of Tears, FDR for interning Japanese, Thomas Jefferson etc. for fornicating with slaves, every Confederate general and their statue, and the list goes on. Even the Berlin City Council recently removed Paul Von Hindenburg as an honorary citizen.
Interesting that Canada, unlike Europe, still commemorates Petain.