it depends on it. if my mom passed away then sure but not until hella years pass though but if she was still alive and my dad wanted a second wife then hell now...but i have a story to tell and see what you guys think about it....
what if the wife cheated on the husband during their marriage of 7 years, and while in that marriage they had 6 childrens. the husband forgave the wife and took her back. the wife fells guilty and regretful for what she's done. she didn't want to leave her kids behind with no mother (stupid decision for cheating in first place) through out the years the wife herself has suffered the consequences of her actions from her children being distances. but as time passed they all learned to live with it and it was just and incident in the past that was never mention again. 10 years later they have another 3 kids and now they have 9 kids all together. The husband wants a second wife now. all the kids disagree on it . Why get a second wife when the husband has everything already? well the husband brings up the issue about the wife cheating on him to his children so they'll take his side. The husband also suffered a lot through out his life since he had a father who made stupid choices and his mother died when he was a little boy. people always looked down on him. even when his wife cheated on him people mocked and was mean towards him. you can say that his life was pretty sad but he grew up to be a good man and a great father through the bad things in his life. what i'm trying to say is if you were his children would you agree to let him get a second wife or strongly go against it?
hopefully it's not your family you're talking about. but the father should not remarry. first of all, he already forgave his wife. if you forgive someone, you can't go back on your word and not forgive them. he said his father made stupid choices, and his choice of a second wife is smarter? if it was my father, i will try every inch of my soul to stop him. if at the end, he chooses to remarry, then he go ahead. but that will just distance our relationship. now if he divorced mum at the time that she did that, then it's understandable. why 10 yrs later with 3 more children aboard, and is going to remarry?
if he was a loving husband and father, he will love and take care of his family. let people mock him but don't let them mock his children. it's bad enough that his wife did that and now he's going to add on to it too. when he remarry, people will talk and say don't marry into that family, like mother like father. obviously he made his decision. i don't think anything his children say will make him change his mind.