So you missed my point. I'll say it clearer then. Spilled breast milk is less of a problem than other spilled body fluids.
Your point was not missed, it is simple unattested to and also irrelevant. All bodily fluids are biohazards, and none is more or less hazardous to any degree that is relevant.
The only exception is urine, which is mostly sterile. Which of course crushes your sanitation position.
Then why compare breastfeeding to masturbation? Don't take me for a fool blind to implications.
As Aegis stated, the comparison was between actions that have recently enjoyed a reversal of public opinion concerning what is "healthy and natural." If we are going to wave normal social mores regarding exposure for breast feeding, then there is no logically consistant reason to not also do so for masterbation. The fact that it is sexual is of no consequence, we obviously allow kissing, but it is rather the standards for indecent exposure that are at play. In the US, breasts are covered by indecent exposure laws.
Being as breasts are covered by indecent exposure laws, then it is irrelevant as to whether the action itself is sexual or not. If it did then you would never have to cover you penis when not engaged in sexual activities. You do, and the same standard applies to breasts.
Note I am not argueing for the banning of public breast feeding, but rather simply pointing out you do not have a valid or logically consistant position right now.

So the amount of possible harm a substance causes has no relevance to whether its disposal should be regulated or not. And here I thought that the "con" side considered objectionability to be a valid argument.
All bodily fluids have different properties so they pose different hazards, but none is more or less hazard to any meaningful degree. Breastmilk contains AIDS, feces does not. Feces caries ecoli, breast milk does not. Its irrelevant, both pose health hazards, and that is all that matters.
You are engaged in a strawman, namely that the bodily fluids of urination of defication are assumed to be uncontroled while in the case of breast feeding it will be. This is a manufactured postion, we can control urine and feces via appropriate recepticals as easily as we can breast milk. And unless you habitually crap on your floor, then you probably practice the use of those recepticals often.
You objections based on sanitation are not logically consistant as stated.
Ammonia is not a living organism. "Biohazard" applies only to biologicals, not chemicals.
Fine, hazards dervived from biological sources.
All breastmilk does? Just as feces always has bacteria? Sorry, last time I checked I was in the West, where HIV infection rates were quite low.
And not all feces carries the same sanitary properties either. It depends on lots of things. Its irrelevant though, as both are bodily fluids that pose sanitation hazards, the fact that they are different hazards is of no consequence to your position.