...it is only the delicately reared online readers whom, the newspaper seems to have decided, need protection...
(me, yesterday, this thread.)
I'm relieved that I'm the first person to point out that I have fallen here into a common error, albeit in good company ('Young Ferdinand, whom they suppose is drown'd,', The Tempest III.iii.92, as Fowler - who goes on about this for pages and pages - points out.)
The relative pronoun is the subject of 'need protection', and should therefore be'who.'