That sort of unwarranted projection encapsulates the inherent problem with discussing such an issue as in a global forum. Most of the industrialised West has ages of consent lower than 18, and consequently people's attitudes vary. In most countries it is recognised that in the case of someone being a few years below the AoC, while consent may not be legally binding, it is a factor to be taken into consideration, so the question of whether or not consent was actually given is a valid one. Example:
Rapist spared jail as judge agrees girl, 10, looked older
Too many people here have operated from the simplistic viewpoint that underage = no consent = "rape" thus de facto discounting Polanski's claim that the girl did actually consent.
I don't think anyone here has claimed either that what Polanski did was not or should not be a crime, or that he should not be punished for it, so you using terms like "apologists" is uncalled for and intellectually dishonest.
As an afterthought, and interesting observation from a British perspective, which will no doubt horrify some people:
Sex is not just for grown-ups