Those comments probably come from people shouting about "diversity" all day long but who are uneasy at the slightest actual bit of diversity like language or op

Those comments probably come from people shouting about "diversity" all day long but who are uneasy at the slightest actual bit of diversity like language or opinion. In my country it's the republic (so the left) that planned and implemented destruction of local languages, which lived for over a millennium without issue under the French crown.