lmorovan,
You have said that if someone disobey's Christ's commandment to be baptised, that they could not be in a true relationship with Jesus. If you follow that line of thinking and realize that Christ gave us many more commandments than the one about baptism, that if we break any of those other commandments, we can't have a true relationship with Him. That is false.
Are you saying that you have no responsibility for your sin or when you choose to sin? Who is accountable for our sin? We choose to obey or disobey Christ all of the time.
Your logic is deeply flawed and you refuse to see it.
1 John 1:8-10
8 If we say that we have no sin, we are deceiving ourselves and the truth is not in us.
9 If we confess our sins, He is faithful and righteous to forgive us our sins and to cleanse us from all unrighteousness.
10 If we say that we have not sinned, we make Him a liar and His word is not in us.
James 4:17
17 Therefore, to one who knows the right thing to do and does not do it, to him it is sin.