as is the case, generally, when entitled, rich white people talk about this issue, they don't represent the viewpoints of actual people living in historical israel - not the converted hebrews, certainly, who overwhelmingly support driving israel into the ocean. there is essentially nobody in the region, which is roughly the size of new jersey, that wants two states.
new jersey is pretty small. a lot of people in new jersey would rather join new york. could you imagine splitting new jersey not just into two states but into two countries? ignoring the logistical problems on the ground - there is no infrastructure in which to build a state with - the amount of space being talked about doesn't seem to really be well understood when rich white people run their mouths off about it. for that reason, there is some logic in the reality that nobody supports two states. the area is arguably too small for one state, whatever the religion.
the clintonian solution worked in ireland, but ireland isn't israel. the indigenous hebrew population in historical israel is not very similar to the indigenous celtic population in ireland. clinton's solution to the problem in the area has proved resilient amongst entitled white people, and remains popular in the west thirty years on, but it was rejected by the "palestinians" at the time and it remains rejected by the "palestinians" today.
if macklemore speaks for anybody, he speaks for a disappearing and aging class of liberal american jews, not for "palestinians" (hebrews converted to islam by arabic colonialism, and mostly only actually over the last 150 years) living in historical israel.
that said, i don't think it's helpful to ban musicians and i would not ban the person from performing at my venue, if i owned one. i might seek an audience and try to talk some sense into him and correct him on points he's wrong about, instead. the united states once was a historical bright point of debate and free discourse. problems are not resolved via censorship.