This issue is not going to go away and shouting at Muslims will not resolve it. Its Canadian experiment in plurality, its not perfect its work in progress and of course not everyone will be happy at the end

Having said this, khutbahs and prayers are different, there is no need for sermons in high school, children can be given 20 min break to pray

khutbahs can be kidnapped by power hungry individuals to make them political

Schools have all sorts of clubs, chess clubs math club, etc that meet and do their thing, think of it as religious clubs that needs half an hour meeting on Friday