Well, any language becomes relatively easy when you learn by immersion. That’s how I finally managed to learn English with little effort, after struggling with it for years. Doesn’t mean the language in and of itself is easy. And it most certainly isn’t neutral; just the fact that it’s the native language of several countries and an inherent vehicle of cultural influence disqualifies it as such.

I’m not in any way doubting the success of English as a widespread second language, I just find it unfortunate we haven’t gone with an easy, neutral language instead.