First-generation marriages between Taiwanese and mainlanders were mainly a product of the environment. Mainlander males had little choice. Thus you can't even talk about the two groups willingly coalescing, and there were also many problems.
第一代的本省、外省人通婚，大多由於環境使然，外省男性少有選擇，因此談不上是兩個族群自願性的融合，所以問題也多。