J.S.
Those sound like working hours to me. Do you expect your co-parent to be a stay-at-home parent the entire time he's with his son? That's simply unrealistic.
Quality versus quantity. From your past posts he clearly adores his son and wants what's best even if he doesn't go about it the same way you would. You seem to be trying to find whatever way you can in order to deem him unfit.
I get it that you hate this guy and don't want him to be a co-parent. Oh well, you made a child together. You don't have a lot of options here. One of your options is making the conscious choice to let go of your anger and dislike and need for control.
You don't like it that he parents differently. You don't like it that you're not in control of 100% of your son's time. That's okay. This is good practice for both you and your son. Both you and your co-parent need to learn to co-exist peacefully for the sake of your son and the next 18 years of life. I suggest you take some parenting classes together and maybe some family therapy for the sake of your son.