I thank everyone for your suggestions and for your passion with which you try to convince me to come back. But I have to be realistic. If there is a small possibility of being blocked from entering the US I cannot overlook it. On the other hand, if the SB-1 visa exists, it is precisely to regularize these situations. If everyone arrives at the airport and pretends to enter, I don't understand what the SB-1 visa is for. And then I don't understand why there are immigration judges and some legislation on the matter. And sorry but I would not find one of you, at the entrance, cheering for me. I would find a CBP official who will try to do his job i.e. find any illegal LPR, i.e. me.
My question now is whether to follow the SB-1 visa route, where I have to prove that I did not want to abandon my green card or abandon it and apply for a new one where I have to prove that I still have all the requirements to obtain it. The SB-1 visa would give me 2 years to enter while the I-130 visa only gives me 3 months. For now I don't have the job offer yet. I'm working on it. That's why I haven't left yet. For this reason the logic suggests me to try to get the SB-1 visa and in case I don't get it try again with the I-130. But it means double expenses. Lawyers cost a lot and do not give you certainty. Maybe if I can find a non-profit organization that can give me legal support. It could be an idea. Dogs do not quarantine. Last time I found them abandoned near the suitcase conveyor belt, alone as a package. They were terrified after the flight and all the noises without seeing us.