There is absolutely no circumstance, I repeat, NO CIRCUMSTANCE in which it’s appropriate to bring an infant or someone under 5 (with an exception of the rare mature toddler I guess) to an art gallery or museum, unless it’s designed for that age group specifically. It’s not like most of them can remember or truly appreciate it anyway. Leave the disruption at home. Can’t find a babysitter? TOO BAD! Go some other time then. It’s almost like being a parent means making sacrifices sometimes (gasp)! This is NOT one of those “oh wouldn’t this be a nice outing to take my baby on” event for fuck’s sake, since it’s an activity that requires the uninterrupted focus and concentration of those around you.
If you decide to be horribly rude in this way, then at least have the fucking courtesy to begin removing the child from the exhibition area IMMEDIATELY once they start causing problems or being too loud. If you don’t, you deserve every single dirty look thrown your way. What the HELL were you expecting?! You are not special. Not every space is meant for you and your child, nor should every space accommodate you and your child.