Again, there are not and never were any restrictions barring Ralph visiting Xander. This was clarified during the hearing back in February. As far back as November he has been spinning this narrative, he just doesn't want to spend what he sees as "unnecessary" money for flights to see some kid who doesn't even know who he is.
Go full mask-off Ethan, you're an internet villain, a self-proclaimed heel, you don't give a shit about your son. He's a cudgel you can exploit for Internet upcummies and to make other people miserable, that's a more effective tactic than whatever scheme you're currently engaged in.