There are a lot of red flags in your case.
1) Why is your profile country Burkina Faso when you stated you married your second wife in your home country (India)?
2) You refer to your first wife as "my wife" when you moved on from that relationship, married someone else, had children, set up a life in the UK, and gained UK citizenship. In most cases people would refer to the person as "my first wife" rather than a more familial "my wife".
3) What happened to your first wife in the years since she was going to divorce you? Did she re-marry? Did she have a family with someone else? It seems you only kept up your relationship with your first wife until your attempts at immigration through her failed. And now when you see a possible chance you can immigrate through her, you are all about her being "my wife".
4) Your first wife didn't want a long distance relationship, didn't want to move to be with you, and wanted to divorce you. You had zero cares for this as exemplified by not following up with her on the divorce process, not inquiring about the divorce papers for you to sign, and not wondering why you didn't get a divorce certificate. You didn't even confirm with her your marriage/divorce status when you met your second wife and wanted to marry her. You just went and did it. But now you are a caring husband to your first wife and want to "help her as much as I can"?
5) As another VJ member stated, your original post declared that you preferred to pursue an immigration visa. Your above post about helping your wife as much as you can seems to be a manufactured justification for trying to get a visa for someone you really do not know anymore.
6) What does your current family think about this? Your children? Do they not need your help and support? Do you not share custody?