Kim Zolciak & Kroy Biermann's Daughter's Dating A Pro Athlete, So Freakin' What?

Reality star Kim Zolciak and her NFL husband Kroy Biermann say they have the perfect advice for their daughter Brielle ... who's dating a professional athlete.

He's just a regular dude ... don't sweat it.

We got the couple -- family in tow -- arriving at LAX and queried them on whether or not they had any special wisdom for Brielle now that she's seeing Michael Kopech, a minor league baseball pitcher.

Our camera guy seems to think the guys in the minor leagues get around ... but Kim & Kroy clearly DON'T ... saying their advice is the same as it'd be if Brielle was dating a plumber.

BTW -- Kim totally takes it to our camera guy ... calling him out for suggesting that pro athletes get around.

'Cause what a crazy idea that is right?