NO. The people calling for this are not progressives - look them up - Simon Wiesenthal Center and Stop Antisemitism are conservative zionist organizations who equate anti-zionism with anti-semitism. As far as I can tell Kamau Bobb's post was anti-zionist, NOT anti-semitic at all. If you read the passages you will see.
This is a cancellation by the original proponents of cancellation: conservatives supporting an entrenched power structure.