Hang in there love.
By the time they are properly verbal most of the
faces have turned into impressed faces as small people flip from one language to another.
Although there will always be a tiny hardcore who will take issue and leap on any invented word made by squashing two languages together like its proof you have FUCKED YOUR CHILD UP! FOR LIFE !!
Look up any random bilingualism expert with a name you can remeber and when they rant just say
"So was it the methodology or the interpretation of the findings that you took issue with in Professor Colin Baker's latest study? I can see why the sample size might give pause, but did you not feel the conclusion took that into account ?"
Say it all interested faced, like you are just delighted to have found somebody else into and informed about the ideas and issues in the field.
Watch them squirm, and beat a hasty retreat in case you ask them more diffiuclt questions that reveal their entire postion is based on knee kerks, snap judgements and anacdote which would make them look silly.
It's all about twisting an attack into a need for a defence, without breaking into a sweat 
The one that gets me these days is "isn't he lucky?"
No, 11years of blood, sweat and tears is not usually called
luck, it's called effort.
But I just smile (through slightly gritted teeth) cos that is just not knowing, rather than knowing nothing but still wanting to tell me what to do.