What are the disadvantages of breast-milk pumping?

Some other disadvantages are having to sterilize the equipment being used, storage issues, not being able to pump at a convenient time, and discomfort while doing it. There are women who don't want to breastfeed but understand the importance of breast milk so they will pump it out and feed it to their babies.

i like to get it out the natural way

The mother-child bonding is totally absent. = So in your view adoptive moms or mom's who are unable to breast feed and their babies don't have bonds?

Physical touch and cuddling also makes a difference to the babies growth = So in your view adoptive children and children of mom's who can't breast feed don't have the same level of physical touch and cuddling as children who are breast feed?

Not to talk of the impact of the mother’s voice and touch = And in your view children who are bottle fed don't have the same impact of their mother's voice & touch?

You are ignorant.

Why is it any business of yours how another mum feeds her child?

So you've taken your ignorance from gun control to...breastfeeding?

Oh look.   It's our resident misogynist troll.    Whatever will the lonely little guy do when Yahoo is shut down?

None of the supposed "disadvantages" you mentioned actually exist.