B1/B2 visa revoked while applying for Tourist visa for Wife and Kid?

You bear all the signs of intending to be a backdoor immigrant - get in anyway you can with intent to remain. You have ties to US (working brother). You have stayed suspiciously long before (bah humbug - knowledge transfer & training). And now you want to bring in wife & baby at the same time? You already have plans to remain, intending to get student or employment visa. No, you're suspected of visa fraud. You've been flagged, and you can forget about returning to the US.