It is gross because she still pretends they married for love not other reasons and achieved everything by herself not through her scammy husband. Not to mention that 40 years old Gary was creeping on 18 year olds regularly and is a confirmed scammer.
I can't believe some people here still defend them.
I feel like you are mixing up a lot of things here. I feel that you are taking the image that they sell way too serious. They are on youtube monetizing themselves. If I want to see something more relatable I would watch Beatrice Chey want to sell this picture perfect family. There are tons of people who want to see that so they are making money of off it.
I do not think that she pretends to be married out of love. She was quite honest about how it started out. They do show how much they love eachother now. If that is real or not, it works for them.
I do not think that you gan generalise the age difference between 18 and 40. She comes from poverty and from a young age already traveled the world on her own. That means she is a lot more street smart than a 18 year old kid who never done anything herself. Still living at home, never traveled or paid a bill.
Being a scammer is not a good thing but he is not the only one who will go out of his way to make money.
Cancel culture is a thing and you are living it. Do not spend your energy on people who are trying to let you know that the world is not as black or white as you think it is. You do not get it, you do not want to get it or you pretend not to get it. You do you boo. You live and you learn and maybe someday you will know what we are trying to say here.