廢話。How many native speakers of various Chinese languages do you know how converse with you regularly in Esperanto? The phonological system of Esperanto is noticeably worse than that of English for native speakers of Chinese to acquire.
Whether a target language is easy to pronounce depends on your native language (and other languages you can pronounce accurately). If you're a native Chinese speaker (whichever variety, but particularly Mandarin), English isn't anything like as difficult as French to pronounce.