Religon in Dating

Let's say a bit about history. In the past, race X only marrys race X, but now it's a mix of races. So, I think those who thinks different religions cannot marry IMO have an older mindset. Not trying to be a racist, but I think I will only marry someone of my race, because of culture. In my opinion, marriage is not only affect two person. It's kind of fustrating if in-laws arguring because of cultures and religions.
Example in Singapore. The three majority races are Chinese, Indians and malay. Majority religions are Buddhist, Taoist, christians, muslims and some others. Imagine a Buddhist and a muslim married, they had different lifestyles and it's a little hard for them to live with each other.
Imagine this. A Hindu Indian marries a malay muslims .Hindus cannot eat beef while muslims cannot eat pork. If you are the Hindu husband/wife, you will surely not be happy if your muslim husband/wife eats beef after marriage and vice versa. And even if both argee not to eat beef AND pork. What about their relatives. Going to another relative house and see beef/pork canned food or in plates is a little unsuitable.
What about the religion of those couples after marriage? If one agrees to convert, their relatives/parents might not accept. And there are a lot of problems.
So, IMO, those people who thinks different races and different religions cannot marry each other are those with a little bit of traditional minded.
And this isn't the first time I heard about people breaking up because of religions matters.

Edit: Sorry. This thread is on dating, I went to talk about marriage.

Jam it back in, in the dark.