Different people have different ideas concerning/about this issue.Some may be for it,while others tend to be against it.
P.S.
concerning：关于；
be for it:支持……
be against it:反对 Different people have different ideas concerning/about this issue.Some may be for it,while others tend to be against it.
P.S.
concerning：关于；
be for it:支持……
be against it:反对