Maybe, or then again, it could just be a westerner with his heart set to demonize China no matter what the facts maybe. Maybe bitter because his job was outsourced.
Growing up in the tiny island of Taiwan I was taught through out my school year to regard the Chinese communists as the "commie bandits of 10,000 evils".... but that does prevent me from seeing how much China has progressed in the past few decades. The zomgzlolwtfbbqgreencard used to be synonymous with a pass to the garden of Eden, no longer has that much draw. In fact, with the recent economic boom in China and the decline in America, many Asian immigrants in the west have moved to China for opportunities. Their government actually is offering some nice intensives for talents to 'return to the motherland', and people are taking the offer. Besides, as the US Freedom(TM) getting raped and eroded day after day, the human right gap is becoming much smaller than it was 20 years ago. You can keep siting cultural revolution and Tienanmen over and over, but the fact is, those horses are deader than dead, yes they are significant historical lessons, but there is not much use keep beating on them trying to milk more propaganda mileage
So don't kid yourself that you can cause a mass exodus of top scientists just by dangling a green card over them. Like many things this day and age, a big wad of bank notes would likely fare much better.