At what point is it ok to not want a man who needs his girlfriend to pay bill.?

1 - This is an individual matter between a bf and gf.  It is no one else's business;

2 - You are not obligated to pay someone else's bills;

3 - I have no idea what "what can someone who can't do for their self do for someone else" means.

At any point. In fact most people wouldn't have ever gotten involved with a guy who can't pay his own bills. 

If you are living together and agreed to split the living expenses ...Apparently he wants to split the cost of living by adding all the bills together and splitting the total cost of all bills in half. That creates an even 50/50 split.

If you do not want to split the cost of living with your boyfriend, then move out, get your own place and pay your own bills. If you don't live with him and are paying some of his bills, that is your stupidity, not his.

You picked him. You can un-pick him, too. Personally, I would never allow anyone to pay any part of the bills I generate. He's not much of a man.

Why are you paying his bills?  His finances is his problem.

 Relationships aren't always 50/50.

Depends on your individual relationship..  if you can afford it or if he's really being a sponge and draining you, can he afford his full share etc.If you have the higher income/work more and pay most of the bills, he should be picking up the slack and doing most of the household chores.

Slicktwerp.  Sounds like she is paying her half PLUS half of his half..   so she's paying 75% of the bills.

Sounds like you have a bad habit of picking low life boyfriends. 

You explain a system in which you pay half the bills, then ask why you have to pay half the bills. I'm confused.

Melt my brain. The minimum length of an answer is 15 characters