<human>: Having to post here because every email I write to him is having about as much effect as trying to dig a hole with a wet spaghetti noodle. 

Long story short, dad (currently early 60's) divorced mother 20 or so years ago, moved to Asia. Married wife number 2 (W2) who was under 35, no kids. She turned out to be a gold digger and just drained my dad for as long as she could until they divorced. He fled to another country in Asia to get away from her, where he met and married wife number 3 (W3) who was under 35. W3 had two kids from a previous marriage and then had a third with my dad (my half sibling). 

That relationship went steadily downhill and then ended about a year ago, with her getting the lions share of everything that they had built up in that time and my father taking the kids (one of whom is from her previous relationship). He moved abroad again and we have recently found out that he has taken another Asian woman (W4, who is under 35, with two kids) with him. They're not married yet, but sounds like they might as well be. He's even said he's started financially supporting her. 

Every time he gets into one of these relationships he leaves almost destitute, heartbroken and starting all over again at square 1. He refuses to listen to me or my siblings (we range from 28-32yrs) and is offended if we ever criticise his choices. Lately he sounds like he's going to cancel our Christmas accommodation reservations just because we all unanimously said we weren't keen on meeting her. 

I have no idea what to do anymore. The whole extended family is exasperated at this point. The thought of him dating someone my brothers age makes my skin crawl, but he won't listen to me.

Provide a brief overview of the text.
<bot>: father is on 4th wife after two horrible marriages to gold diggers, won't listen to me or rest of extended family.