I'm so pissed off right now. cyfd didn't place my son with me. WHY?

ok, a recap because i have been asking questions about this issue in the past. i have an almost 4 year old son. i was never married to the mom and my name is not on his bc. i had visitation and i was ordered to pay child support. i also stopped picking him up when he was about 9 months old. haven't seen him since then. i used to smoke weed and my ex gfs parents did not like me so i just said to hell with it.. i got sick of their shi+. my ex gfs parents have helped her raise my son and now i find out she is in rehab for drug addiction and my son tested positive as well. well in this effed up meeting they said that my son was safe with the grand parents so they wasn't going to move him with me and my family. i live with my parents. cyfd suggested that i pick up where i left off on the orginal court order of picking him up for visitation. me and my mom and dad said that would be great. well the grand parents said absolutely NOT. they told me that they want me to be introduced into the boys life again slowly... i told them thats absolutely NOT GONNA HAPPEN. i am the boys father and i should not have to be INTRODUCED TO HIM. thats a bunch of bull!!! also me and my parents blame the grand parents for my son being exposed to drugs!!! where the hell was she when this was happening. she gave a lame story about how my ex gf got angry at her cause she told her she needed to leave the guy she was with and seek rehab and that caused my ex to take my son and not let her have access to him. she should have called cyfd!!! also the grand mother brought up that she reached out to me last january for my help!! she did and eventually i did call the cyfd in may. well when i confronted her about this issue this ***** says, where were you? if you would have been exercising your visitation maybe you would have known something was up... what a effing joke!!! i don't want these people raising my son and i think his mother should be stripped of all parental rights ASAP. i mean she should NEVER get to see him or raise him again. today i get served papers that these effing people are filing for guardianship of my son!!! so what if they raised him, fed and clothed him!! they are grand parents that is what grand parents do!! bottom line, they failed to protect my son and should not have custody. this woman has the nerve to say that my son never received a dime of child support. no cards on b-days or christmas... what the eff ever!! you people failed to keep him safe!!! that should out weigh me being MIA as these effing people call it!!! also, statistics say that people on meth 75% of them never recover so it pissed me off when i was told that shes in rehab changing her life. WHATEVER. how much is this going to cost me to fight for my son in court. i just started a new job as a cook. also income support is after me for 20k in child support. this is an effing mess!! should i counter sue these people for not protecting my son? my mom got in this womans face and told her that she should be ashamed! she should!! what do you all think is going to happen with this. these people got a mean *** ball busting lawyer. thanks man.