Funny, isn't it? Players, even the top ones, can find it harder to score against the best teams. But yeah, let's sell the utter fraud and buy two replacements who are boss in fifa.
For me, it's not about the goals. As said ad nauseum, he's a fantastic goalscorer.
It's that he doesn't turn up at all against the top sides far more often than his peers. I mean that in terms of general play. Even when he's scored, like against City in the 1-1, he's been anonymous except for that and it's meant us conceding possession over and over again. Ditto in the 3-2 loss to Spurs, where he scored but Kane was a miles ahead of him in performance.
He has streaks where Lukaku is genuinely unplayable, and he did at the turn of the year - but my view of him that they are too few and far between, and that's why the side as a whole can't play consistently well, because you don't have the reliable outball or gameplan that a better technical striker allows you to develop.