'It's like marmite - you either love it or hate it,' is a current cliche in the making. I don't think it will acquire the momentum of the 'rollercoaster' menace because it's not even accurate. I mean it's true that rollercoasters go up and down, but I, for one, neither love nor hate marmite - I just quite like it. Mind you, accuracy isn't stopping the momentum of the 'in their DNA' idiom currently used obsessively by sports commentators in contexts that have nothing to do with genetics:
producing bowlers who can deliver a ball which dips suddenly in its flight and then scoots straight and low across the ground, by generating topspin through squirting the ball off the middle finger...-
is in the Sri Lankan DNA
