I guess I'm not sure what your argument is then. Yes childcare can be tough to find and it can be very expensive depending on where you live, but if you're saying its okay to hold a full time remote job and care for your child at the same time, I guess we will have to agree to disagree. I dont' think that would be fair to your child or your employer.
I am not saying it is "okay", I am saying that sometimes there is no other option. Life happens, people cope the best they can, and sometime the reasonable compromise is going to be to let the kid sit on their parent's lap for the duration of a conference call.