It is true. However, it's in many cases a win-win situation, where the Thai women both get a kind caring husband and a willing provider.
My home country Denmark, have made a couple of documentaries abot this, one serie a few years ago, and a recent one starting last year called "Mændenes paradis" (Men's paradise) and this year's three additions have just been released last week. If interested – it is mainly spoken Danish language – then there is a link here...
https://www.dr.dk/drtv/serie/maendenes-paradis_461630
Often it is a combination of both finding a woman, life-style and economy that draws Western men to Thailand; however, some have plenty of money and can afford to offer the lady a luxury life-style.
If you only wish a spouse, you might also marry her and bring her to your home country, which in many cases is possible. That is quite common in Denmark, mainly with women from the Philippines, number two in the chart is women from Thailand..
And me – if anybody should be interested – I moved to "all year summer" with women as an extra benefit. I had plenty of single mums around 40 at home interested in me, but I was looking for finding one young enogh that could give me an heir that I by that time never had time to get, while having a smaller business to care for so it could survive. And as I also likes Southeast Asian women, so that was an extra plus. So when 56 I sold the production part of my business and my property, and moved to a tropical island with "all year summer and barefet Xmas" – women was an extra benefit – and I also got my heir...